Powerful Ionic Compounds

Powerful Ionic CompoundsPolyatomic ions are neutral to positively charged molecules that contain one more electron than a normal molecular ion does. As such, they can form single or double bonds, depending on their types.Molecules containing double bonds have two hydrogen atoms and one proton between them. In contrast, single-bond molecules (those with a single bond) have two electrons between the proton and an atom's nucleus.Polyatomic ions with multiple charge cations are commonly referred to as strongly cationic ions. They have many negative charges and therefore cannot be neutralized. As a result, most chemical reactions with strong cationic ions will be unreactive, resulting in no harmful side effects. For example, a neutralizing agent would have a significantly higher effective surface area, resulting in faster degradation of the molecules being attacked.Among the polyatomic ionic compounds, the most widely used are zinc(II) complexes, but it is common to see the mildest polyat omic ions being used as strong ionic compounds in organic reactions. The main difference between them is how they behave chemically, which is largely determined by the elements they are made of.As strong ionic compounds, they are almost always sensitive to potential changes (the change in potential from ground state to an excited state). If the conditions are right, a chemical reaction can occur (as a result of the transfer of charge) with a potential that is much higher than the concentration of the molecules.Due to the molecular nature of strong ionic compounds, their most important advantage is that they allow the molecules to undergo conformational changes in very small amounts, thus facilitating controlled reactions. In other words, these ionic compounds can be converted into a more effective energy producing reactant.Although polyatomic ions are generally quite reactive, the strong ionic compounds can be advantageous due to their ability to retain a high degree of stability un der all conditions. In addition, ionic compounds are able to allow several chemical reactions to occur with the same molecule. This is important in organic synthesis, for example, as it is the low abundance of particular compounds that make different synthetic reactions less stable.

Directly Proportional

Directly Proportional Directly proportional means two variables that increase or decrease at the same time. If two variables are proportional if a change in one variable is accompanied by a change in another variable. We can also say that if two quantities are said to be in proportional then one quantity is a constant multiple of other quantity. Two quantities a and b are said to be directly proportional, if the relationship can be written as a = k b where k is a proportionality constant. Problem 1: The term A is directly proportional to x. And when A is 12, x is 4. Find the value of A when x is 10. Solution: Since A is directly proportional to x. = This can be written as A = k x, where k is proportionality constant. = Given When A is12, x is 4 = Find out constant from the known values A = k x = 12 = k * 4 = By dividing 4 on both sides, we get k = 3 = When x is 10 then A = k x = 3 * 10 = 30 = Therefore, when x is 10 the value of A is 30. Problem 2: A term Y is directly proportional to the square of x. And when Y is 24, x is 2. Find the value of Y when x is 5. Solution: Given Y is directly proportional to x^2. = So, Y = k x^2 = Substitute the given values (Y= 24, x = 2) = Y = k x^2 = 24 = k* 2^2 = 24 = k * 4 = Dividing by 4 on both sides we get k = 6 = When x = 5 then Y = k x^2 = 6 * 5^2 = 6 * 25 = 150 = Therefore, when x is 5 then the value of y is 150.

How to Teach French

How to Teach French Teaching French as a Foreign Language ChaptersTeaching French as a Foreign LanguageWhat Does a French Teacher Do?What Qualities Do You Need to Teach French as a Foreign Language?What Training Do You Need to Become a French Teacher?The Different Types of French TeacherWho Are the Students?“Learning another language is not only learning different words for the same things, but learning another way to think about things.” - Flora LewisAround 2 and 2.5 million French citizens live outside of France and a lot of them are teaching French as a foreign language.  This just goes to show that there’s a market for those who’d like to teach French to students in primary school, secondary school, college, or university.French language classes are mainly for those in primary school and secondary. However, these aren’t the only options. A French teacher can teach immigrants, refugees, children, teenagers, or adults.So what exactly does a French as a foreign language teacher do?In this article, we're going to look at teaching French as a foreign language, what a French teacher needs to do, the qualities you need to teach effectively, the training you'll need, the different types of French teachers, and who you'll teach. AnnieFrench Teacher 4.89 (9) £20/h1st lesson free!Discover all our tutors CarolineFrench Teacher 5.00 (13) £25/h1st lesson free!Discover all our tutors LowriFrench Teacher 5.00 (9) £90/h1st lesson free!Discover all our tutors MarianneFrench Teacher 5.00 (8) £30/h1st lesson free!Discover all our tutors ThibautFrench Teacher 5.00 (3) £19/h1st lesson free!Discover all our tutors AnnickFrench Teacher 5.00 (6) £20/h1st lesson free!Discover all our tutors DéborahFrench Teacher 5.00 (10) £35/h1st lesson free!Discover all our tutors SamyFrench Teacher 5.00 (2) £100/h1st lesson free!Discover all our tutorsTeaching French as a Foreign LanguageAs a teacher of French, you’ll be teaching those who don’t speak French as their first language.A French teacher will be teaching non-nat ive speakers. (Source: rawpixel)You can’t talk about teaching French as a foreign language without talking about French as a foreign language.Put simply, French native speakers in French-speaking countries don’t learn French as a foreign language. French lessons in these countries aren’t the same as they would be for those learning French as a foreign language. They learn French from a young age, for one.Learning French as a foreign language occurs after the student has already learnt a language. In Mali, for example, French is a second language and it’s used by part of the population.French as a foreign language is more akin to your typical foreign language classes at school. Students can learn it like they would learn Spanish, German, Italian, etc. French is taught in a different way to the native language.When you’re teaching French as a foreign language, you can teach it anywhere in the world where people want to learn the language. There are certain constraints to tea ching students in a language they don’t speak natively and you’ll need to adapt your teaching approaches.A French teacher needs to adapt to each lesson and each student as they can even find themselves in classes where the students are of different ages.What Does a French Teacher Do?If you want to teach French as a foreign language abroad, you may need to work in the private sector. A degree in French doesn’t necessarily mean you can teach French in primary or secondary schools. This is because you don’t have any teaching qualifications.A French teacher needs to adapt to their students. (Source: Wokandapix)You can teach French as a foreign language outside of schools in language academies or private lessons. The main goal of a French teacher is to teach those who don’t speak French how to speak it.The Role of a French TeacherA French teacher has different goals:Create a course: The teacher has to create courses for various ages.Create common objectives for the class while paying attention to the differing levels of each student.Teach French grammatical rules through written and speaking exercises.Share the French culture with the learners.Encourage the use of the language outside of class. AnnieFrench Teacher 4.89 (9) £20/h1st lesson free!Discover all our tutors CarolineFrench Teacher 5.00 (13) £25/h1st lesson free!Discover all our tutors LowriFrench Teacher 5.00 (9) £90/h1st lesson free!Discover all our tutors MarianneFrench Teacher 5.00 (8) £30/h1st lesson free!Discover all our tutors ThibautFrench Teacher 5.00 (3) £19/h1st lesson free!Discover all our tutors AnnickFrench Teacher 5.00 (6) £20/h1st lesson free!Discover all our tutors DéborahFrench Teacher 5.00 (10) £35/h1st lesson free!Discover all our tutors SamyFrench Teacher 5.00 (2) £100/h1st lesson free!Discover all our tutorsWhat Qualities Do You Need to Teach French as a Foreign Language?Two of the most important qualities for any teacher are pedagogy and patience.You can lea rn on the job. (Source: PublicDomainPictures)You need to love teaching more than anything else you do. Learning a new language takes time and empathy is essential.Students can get frustrated and may struggle to understand certain concepts. The teacher is there to encourage and reassure the student, showing them how to continue and not lose confidence.A French teacher needs to listen to their students and understand their difficulties. Flexibility is key when it comes to ensuring that no student falls behind.  Of course, a French teacher needs to master the French language. They’re not expected to know everything about the language but they should be constantly learning about the language so that they can answer questions about it.When do you use “emmener” and when do you use “emporter”?Why do you sometimes pronounce the “s” in “tous”? Why do you say “il lui téléphone” but “il pense à lui”? Finally, the French teacher needs to know what learning a foreign language is like and what the students are going through.What Training Do You Need to Become a French Teacher?To become a French teacher, it’s recommended that you study French through GCSE and A Level.Being a French teacher will give you the opportunity to travel. (Source: TheAndrasBarta)After your A Levels, you can then move onto a French degree. You can study French on its own, alongside other foreign languages, or with other disciplines such as business or tourism. Then it’s recommended that you get a postgraduate degree in teaching (usually a PGCE).You can always change careers if you want and retrain as a teacher. There’s also distance learning.During your studies, you can learn how to teach French as a foreign language and adapt your lessons to the students.If you’re already abroad and want to learn how to teach French as a foreign language, you can always opt to do the DAEFLE, a qualification recognised by the Alliance Française.Finally, if you want to become a Fre nch teacher in a primary school or a secondary school, you’ll need to check the requirement for your particular country.Take French lessons London to improve your language skills.The Different Types of French TeacherThere are many different ways to teach French as a foreign language.  You can teach French at universities to foreign students, teach immigrants moving to a French-speaking country, or even offer lessons to associations or private companies.  Teachers can also be employed abroad in cultural centres or language centres.As a French teacher, you may be in a precarious position.  The best way to make sure you have job security is ensuring you have the appropriate qualifications. You could teach abroad in a public primary school, secondary school, college, or university.Your pay will depend on where you teach and the levels you teach.  It should be noted that some places have limited contract times.  Make sure you check the paperwork required by the country, too.Who Are the Students?Of course, since you’ll be teaching French as a foreign language, you won’t be teaching French people.  If you’re teaching in France, you could be teaching asylum seekers, immigrants, Erasmus students, etc.  You could also be teaching students from 1 to 99 years old.Of course, teenagers and children learn more easily than adults. Adults tend to be quite set in their ways and resistant to learning a foreign language if they’re being forced to do it. Motivation is key when it comes to learning a foreign language.Now you know more about teaching French as a foreign language, go for it!If you need more help with your French, you should consider getting help from one of the private tutors on Superprof. You can find tutors teaching a variety of subjects and skills.There are three main types of tutorials available and each has its advantages and disadvantages depending on your learning objectives and budget: face-to-face private tutorials, online tutorials, and group tuto rials.Face-to-face tutorials involve one student and one tutor. This allows students to benefit from tutorials that are tailored to them as a student and what they want to learn. Of course, this type of bespoke service comes at a cost. However, these are also the most cost-effective tutorials since your tutor will be focused on you every minute of your tutorial.Online tutorials also have the advantage of being one student and one tutor. That said, your tutor won't be there in the room with you as they'll be teaching you over the internet with the use of a webcam and software such as Skype. Without travel costs and time, online tutors can charge less per hour as they have fewer outgoings.Group tutorials tend to be the cheapest per hour as the cost of the tutor's time is shared amongst all the students in the class. If you and a few friends are interested in getting private tutorials, group tutorials could be a cheap way to do it. However, you won't get all the one-on-one time you can expect from the other two types of tutorials.With many tutors on Superprof offering free tutoring for the first hour, you can always see whether you get along and also work out the finer details of how you'd like to learn.You could even become a French private tutor yourself.

How To Prepare For Your Math Final Exam Without Losing Your Sleep

How To Prepare For Your Math Final Exam Without Losing Your Sleep Is it accurate to say that you are getting enough math assignment help for math finals… possibly your first math final exam that you are appearing for? You must be wondering how to take over and be ready. Do You Hate Math? 5 Ways To Instill A Love Of Math In Kids http://t.co/SDnaKpFKp5 #backtoschool #homeschooling pic.twitter.com/afIR8VqvZx â€" Tutor Pace (@TutorPace) August 12, 2015 On the other hand, in case you are a guardian, or a parent, does the apprehension of overcoming your childs math exam fill you with fear? There is an ardent need to share all best tips from an online math tutor on concentrating math and scoring well in exams so that your child can joyfully survive finals with least stretch. This is precisely the exact same tips many children have already applied with online math tutoring and gained considerable success with their Math final exams. Let us look at How to prepare for your Math Final Exam fundamental tips: Relax In the event of reasoning about your math exams, or math finale, sends sending you or your child into frenzy, relax yourself through deep breathing. Simply continue breathing profoundly. Take a full breath. You can do this. Take three full breaths. Eat Verify that youre getting decent suppers all through finals week. You need to continue supporting your brain with excellent protein! Additionally, you will carry less stress, concentrating more on things, and discover it less demanding to hold to your blood pressure. In case you are the parent, verifying you take proper food this week is likewise critical and will make it less demanding to be quiet and cherishing with your child in the event that they need assistance from you. Rest It is imperative to get great rest every single day through last week â€" not simply the night prior to the test! You will get way more out of your study sessions if you are getting great rest consistently. As a matter of fact, if you rest more as compared to your study time, you are surely to get higher evaluations in your finals then you might think otherwise. Organize No less than a week prior to finals week, make a study arrangement for the whole week. Split it up Do not anticipate doing the complete subject all in one monstrous shot. Doing too many math lessons, or probably the entire subject altogether, all in one evening is most likely not the best arrangement. Maintain privacy in your room With pin drop silence in your room, without any kind of interference, you can give full concentration to what you are studying, which will save lot of your energy and time to complete the subject. Ask yourself, and plan in likewise manner As a component of your general study arrangement, expect that there will be a few issues, points, or ideas you will need to get outside help with. Fit this into your study plan so that two days prior to the test, you can go to your friends, family, or tutor to get your inquiries done. The day preceding exams you can simply concentrate on inspecting what you have effectively cleared up. Dedicate time based on problem You truly need to organize your concentrating time, when you are experiencing all sorts of problems. Search for the hard issues first and attempt to take a shot of them first. That way your major task is over at first and it will then hardly take any time to solve simple problems. Take consistent breaks in between Planning to take breaks assist you with remembering things better, keep you from getting excessively worried, furthermore makes the entire process more pleasant. Take breaks to give rest to your mind, neck, and eyes. Pay consideration on what really assists you with feeling rejuvenated â€" perhaps strolling around, watching something on television, reading a book, listening to music, or may be some other ways. Last minute revision always helps The day preceding the test, have a go through on what you have effectively drilled, for a quick last minute revision summing up things. 8 #Videos That Prove #Math Is Awesome http://t.co/ctmhsmzZ7o pic.twitter.com/A3986sfavR â€" Tutor Pace (@TutorPace) August 17, 2015 To conclude… When preparing for Math final exam, it could one hell of a monstrous fear that may build up. Not to worry. The above tips such as doing deep breathing exercises, eating healthy and in quantity, taking ample rest, following a study plan, studying in parts rather than the whole subject altogether, having privacy while studying, ask questions to yourself while studying, dedicate concentration time based on problem type, take consistent breaks to refresh yourself, and know what to refer during last minute revision, can help you overcome any kind of last minute fear associated with the subject, especially when on the verge of giving final exams.

3 Common Back-to-School Issuesand How to Address Them

3 Common Back-to-School Issuesâ€"and How to Address Them For many elementary school students, the start of the school year is an exciting time to reconnect with friends and teachers, and to resume learning. Yet, after a long summer off, the exciting return to school is also a time when many classroom issues emerge. If you dont address these challenges early on, its possible theyll become more challenging to your student as time goes on. So its helpful to help them as soon as you can. If your elementary school student is having a hard time getting into the swing of a new year, read on. Here are three common back-to-school issues and advice on how to address them. Back-to-school issue #1: Forming few friendships The classroom is a wonderful place to make friends. However, for some students, making friends can be tricky. Students who are shy or who have just moved to a new school district might struggle to make friends in what can sometimes seem like a sea of strangers. If your student is struggling to make friends, you might notice that he or she doesnt ask to visit other childrens homes or to bring other children over. Your students teacher may mention to you that they notice your student doesnt interact much with his or her classmates, or you may observe as much when you pick your student up from school or the bus. Encouragebut dont forceyour student to form friendships. You can encourage healthy friendships by being a good model for friendly social behavior and reinforcing when your child takes interest in his or her peers. You can also set up playdates with parents you know. [RELATED: Tips for Helping Children Change Schools] Back-to-school issue #2: Struggling with academics Some grade jumps in elementary school seem larger than others. For example, an elementary student can expect more homework in fifth grade than in fourth grade. Academics slowly grow more rigorous over the elementary school years, and it becomes increasingly common for some students to fall behind. Your elementary school student might be struggling with academics if he or she tries to avoid doing homework, or comes home with poor grades. Chances are, your students teacher will notify you when he or she notices your child has fallen behind. To help your student keep up, positively reinforce studying for quizzes and tests, and doing homework. Praise your student when he or she gets good grades, and encourage him or her to continue working to improve if his or her grades are not where they should be. If your student is having a hard time keeping up, talk to your students teacher. He or she may recommend a screening for a learning difference, or recommend a private tutor. [RELATED: 3 Benefits of Tutoring for Students With Learning Differences] Back-to-school issue #3: Displaying boredom While some students struggle to keep up in the classroom, others are so far ahead that they become easily bored and under-stimulated by classroom activities. When students become bored, their effort levels may drop. They may even become distracting in the classroom by acting out. You may notice your student is bored if he or she only talks negatively about school. Your childs teacher may also tell you that he or she is distracting other students. If your student is breezing through his or her academic work, you may want to chat with his or her teacher to see if your child can be given advanced work. Adding extracurricular activities can also make school seem less boring, and can give your student new skills and the chance to make new friends. Any topics you want to know more about? Let us know! The Varsity Tutors Blog editors love hearing your feedback and opinions. Feel free to email us at blog@varsitytutors.com.

Acing the MCAT - Test Day, Here You Come

Acing the MCAT - Test Day, Here You Come MCAT Medical School Admissions The day has finally come and now all those hours spent nose to page are going to pay off. But how do we minimize stress and anxiety in order to maximize all of the time we spent in preparation. This post is intended to give you an overview on what to expect on test day. Because being prepared for what you will encounter, in addition to content, will help reduce stress and help you achieve your target score. The regulations surrounding the testing environment can accelerate the already growing butterfly swarm forming in the pits of the students on test day. Here are the things to expect and ways to overcome and challenge they pose. First, if you haven’t taken a COMPUTER BASED practice test do so immediately. The AAMC practice tests are obviously highly recommended as they are written in the same style, with the same amount of passages and by the people who write the actual MCAT. All MCATs are now computer based, an understanding and familiarity with the tools you are provided on the computer is essential to achieving your target score. Next, you need an understanding or familiarity with both your test center and the protocols for checking in on the day of your MCAT. Despite the fact that every test center is different you can use these general guidelines and tips to help with the stress the test center. If you have been forced to go outside of your area to take the test we recommend visiting your site before taking your test. With all you have on your mind directions to your test center is one thing you shouldn’t have to worry about. When you do get into your test center, preferably 15 minutes early, understand you will be put in a room with other, nervous students. Putting in your headphones and listening to music can help you focus on your test and not the mountain of nervous energy in the room. When you are called to your testing room you will first be fingerprinted. No you will not have your background checked, but every time you leave the room you will have your print taken on the way out and the way in. Sub sequently, you will be asked to put everything you have with you in a locker. Keep only your I.D., which will be used to get in and out of the test room. The proctor will then check all of your pockets to make sure. You cannot bring any phones, food, phones, books, purses, hats or into the testing room. O.K., test time. You will be in a room with 10-20 students in individual computer cubicles. You will be given 2 pencils a stack of scratch paper and possibly earplugs. Some people like earplugs when taking tests to eliminate background noise, some don’t. Go with what you’re comfortable with, but know that the proctor will stagger start times for the test so people will be getting up intermittently throughout the test. Next, go through the tutorial. For those prepared students who have taken AAMC computer based practice exams, this may seem unnecessary but if your computer has something wrong with it from a sticky key to a broken mouse it is better to catch it here than during the physical sciences section. First up is the Physical Sciences section, 70 minutes, 52 questions, 13 discrete questions and 7 passages. Afterwards, you will be given a 10-minute break. During your break eat something, drink something and go to the bathroom. The test is 5 hours long! Snacks to keep your energy up, fluids to keep you hydrated and frequent bathroom visits will keep your question-answering mind firing. Then comes Verbal Reasoning, 60 minutes, 40 questions, 7 passages, followed by another break. The writing sample is next, 2 essays 30 minuets each. Again during the writing sample knowing what word processing functions that are available on the actual MCAT will give you an advantage, so take those practice tests. Finally, you have the Biological Sciences section, 70 min, 52 questions, 13 discrete questions and 7 passages. And then it’s time to relax, at least until your applications are due… For more information on taking the MCAT and rules and regulations surrounding the test visit https://www.aamc.org/students/applying/mcat/

Silent Letters Pronunciation Made Easy

Silent Letters Pronunciation Made Easy English is semi-phonetic, which means that the way a word is spelled can give clues to its pronunciation but can also be quite misleading. Often, the pronunciation of a word can be very different to what you might predict based on its spelling. One way English is semi-phonetic is the use of silent letters. Silent B We never pronounced the b in crumb. We stopped pronouncing the b in thumb and dumb before the Modern period. limb crumb dumbplumbercomb bomb thumbclimb tomb debt debtor doubt doubtful subtlesubtleness Silent D handkerchief Wednesday sandwich handsome Silent E atehope drive gave write sitehidebite The e is silent but it has an effect on the preceding vowel GH as F (not silent but weird) roughtoughlaughenoughcoughcloughdraught Silent K We stopped pronouncing the k at the beginning of words in the 17th century. knifekneeknowknockknowledgeknead Silent M The silentmin the Greek wordmnemonicwas never pronounced in English. mnemonic Silent N Then in words like autumn and column have never been pronounced in English, but reflect the original French spelling. autumnhymncolumnsolemn Silent P Thep in pneumonia has never been pronounced in English. However, thep in words likepsyche and psychologywere pronounced by educated people until the 18th century. psychiatristpneumoniapneumaticpsychotherapypsychoticpsychologistpseudonym Silent T Thet afters orf and beforeen stopped being pronounced in the Early Modern period. Thetat the end of words likerapport, gourmet,andballet reflect the French spelling and pronunciation. castlesoftenhastenfastenlistenoftenChristmaswhistlethistlebustlewrestlerapportgourmetballet Silent C musclescissorsascentmiscellaneousfascinatescenario Silent G The silentg after a vowel and before anm or ann comes from the French and Latin spellings of these words. They were never pronounced in English. champagneforeignsignfeigndesignaligncognacgnatgnaw Silent GH boughtthoughtdroughtthoroughboroughdaughterlightmightsighrightfightweighweight Silent H By the end of the 19th century, the only words in which it was permissible to drop thehand not be considered a defect of pronunciation were the loan wordshonest,honour,heir, andhour. Words likeherb,humour, andhumblecan be heard pronounced with a silenthdepending on the region in American English. honesthonourheirhourwhatwhenwherewhetherwhy Silent L We stopped pronouncing the L after a and before f, v, or k after the Middle English period. calmhalfwalkwouldshouldcouldcalfsalmonyolkchalkbalm Silent S islandisleislet Silent U guessguidanceguitarguestguildguard Silent W The w before r was no longer pronounced after the mid-16th century. The w after s in sword stopped being pronounced after the mid-17th century. wrapwritewrongwringwreckwrestlewristwhowhomwholewhoevertwoswordanswer The history of silent letters provided above comes fromWhy is English Like That? by Norbert Schmitt and Richard Marsden. If you are interested, you can buy it here. The two vowels illustration was drawn for me byNerio Byung Hyun Son in 2016. Learn to pronounce words with silent letters using text-to-speech The Easy Way to Learn to Pronounce Silent Letters Learning Activity Instructions:Try to pronounce the words listed above. Use the text-to-speech widget on theVirtualWritingTutor.comto check the pronunciation of the words you are not sure of. Please follow and like us: