Understanding Line Notation in Chemistry

Understanding Line Notation in ChemistryOne of the latest innovations in chemistry is line notation. The idea is simple and yet, to many it may seem counter intuitive. It is not often that a subject about which a person is a little unsure comes across as being exciting to them. With some curiosity, curiosity will give way to confidence and you may well then be on your way to the field of science of which you are aspiring.A line is a unit of distance in science, where the length is dependent on the letter 'a'. As the shortest length would be one meter, the longest distance would be a kilometer, so one line of a molecule is equivalent to approximately one-half of a kilometer, and so on.In one respect, line notation is quite simple. For example, if one wishes to represent a millionth of a milligram of sodium chloride, then they could write '000' in the middle of the blank. This would be the concentration in the glass.In another respect, line notation is more complicated, and for this re ason it is likely to take a bit of time to get used to. However, once you are convinced that it is true and correct, then you can expect the other aspects of chemistry, not just as to what is written on the sheet of paper, but also as to how it is read, to fall into place.Consider for example, a sodium ion. If one were to say 'one thousand two hundred nine thousand seven hundred twenty-nine-ten meters of sodium chloride', then this would be a known reading. The fact that the word 'line' is written after the number is merely used to indicate the distance in which the read element is located from the point on the paper.Line notation can, of course, be misleading. For example, if one were to draw a line representing the location of a sodium ion at a particular time, then this would be inaccurate, because this would be impossible to do, since it could not be established where the ion actually was. Therefore, the ion would actually be placed anywhere along the length of the hydrogen atom .Another, perhaps less difficult application of line notation is the use of it for organizing recipes. For example, if a recipe were to be organized by 'acid', then if 'a' was to be written down next to the 'acid', then it would be easy to remember exactly where the acid was placed.If a student were to organize a type experiment using powdered glucose, he or she could determine the amount of glucose in the flask with the help of this form of notation. It is more widely used than you might imagine, because of its usefulness.

Online Sources for the Best SF Chemistry Information

Online Sources for the Best SF Chemistry InformationMany people learn SF Chemistry through books or through other websites. Unfortunately, there are just a handful of information sources out there that can provide the absolute most useful information possible for you to become a competent and good chemist. Luckily, if you take the time to dig around and look at the best online resources, you'll soon find out what to look for.The best online source of SF Chemistry information is in books. These books provide comprehensive information about the chemical process and the most common elements of this process. They also have step-by-step instructions for producing chemicals and the appropriate temperatures and pressures to get the process started.Every single book that you use will contain a list of the most commonly used substances for this process. These include many different chemistry experiments, environmental control processes, construction procedures, various systems, and the reagen ts. These all need to be provided to you in a book that is specific to this field.If you want to get your hands on an online book, be sure that you carefully check it out before you buy it. Some websites will charge you a large sum of money for books that are not really worth your money, and in the end you end up with a bunch of material that you don't use and are just thrown in the trash.Another way to find out which book you're going to buy is to ask your teacher. There are many different sources of online materials that teach chemistry, so you should have no problem finding the right ones for you.There are some great online resources available that can really help you out if you know where to look. All of them will be able to provide you with the most accurate information that you'll ever need in order to get started with your chemistry career.There are many different online resources out there, so you need to choose carefully. The best one for you depends on the way that you lea rn, how much experience you have in this field, and the education that you currently have.

Listen Up! Helpful Singing Tips Just for the Guys

Listen Up! Helpful Singing Tips Just for the Guys Sign up successful Its important not to force notes that you dont really have. You cant turn someone into something theyre not again, use the colors in your singing voice as a clue. Even if your range is relatively limited, a brighter, lighter sound implies that with training, youre likely to have a higher vocal range. Additional Singing Tips For Guys Know your voice not just your range, but how your voice works when youre not feeling your best. Avoid singing when youre sick if you can, but since we are our instruments, we all have days when were not 100%, but still have to produce the goods. Know what you can and cant do comfortably on these days. Avoid anything that will damage your voice this means smoking, some prescription medications (talk to your doctor), excessive alcohol consumption, and throat clearing. If this is a habit for you, break it as soon as you can. Get plenty of rest not just for your voice, but for your body too. Exercise again, not just scales and vocal exercises, but find a physical activity you enjoy, and stick to it. Singers and Singing Styles No discussion of singing tips for guys would be complete without considering artists who have taken their art form to a world-class level. Lets consider probably two of the most distinctive male voices of the last century the great Italian tenor Luciano Pavarotti, and Freddie Mercury, the charismatic frontman of British rock supergroup Queen. Even though their musical genres couldnt be further apart, they have more vocal similarities than they do differences. They both have extraordinary vocal  facility and freedom. Pavarottis golden, bright, rich-toned vocal style incorporated the Italian sob a technique particularly used in verismo (realistic) operas. Mercurys extraordinary vocal agility, attention to words, and stunning musicianship made an impression on many. As you improve your skills, keep these singing tips in mind and always keep your particular vocal style in mind. You’ll begin to notice what works and what doesn’t for your range, and capitalizing on that will make you an even better singer! Photo by Unsplash Interested in Private Lessons? Search thousands of teachers for local and live, online lessons. Sign up for convenient, affordable private lessons today! Search for Your Teacher

Derivative Symbol

Derivative Symbol Derivative symbol is the notation for differentiation. The process of finding the derivative is called the differentiation. Derivative is a value based on some other asset. Derivative is a value that is derived from something else. Derivative based on different types of assets such as stock market, commodity, banks etc. For common function y = f(x) the derivative can be written as dy / dx. It is also denoted by f. the three notation of derivative are f, f and f. The main use of derivative is to minimize the risk while offering potential for high return to another. Example 1: Find the derivative of 2 sin (2 x) Solution: Derivative of 2 sin (2x) is written as d (2 sin (2x)) / dx Differentiate d (2 sin (2x)) / dx = 2 d (2 sin (2x)) / dx (by constant multiplication rule) = 2. 2 sin (2 x) = 4 cos (2 x) since 2*2 =4 and derivative of sin is cos. Example 2: Find the derivative of (x+1) / (x-2) Solution: Use the quotient rule for finding the derivative Quotient rule is (d/dx) (u/v) = v (d u/dx) u (d v/dx) / v2 (d/dx)(x+1) / (x-2), here u = (x+1) and v = (x-2) (d/dx)(x+1) / (x-2) = ((x-2) d(x+1)/dx (x+1) d(x-2)/dx) / (x-2)^2 = ((x-2) (1) (x+1) (1))/ (x-2)^2 ( use multiply rule of derivative) = x-2-x-1 / (x-2)^2 = -3 / (x-2)^2 Thus the derivative of (x+1) / (x-2) is -3 / (x-2)^2 The above example shows how to find the derivative of function using basic rules of derivative.

Top 10 Tips For College Campus Visits

Top 10 Tips For College Campus Visits The following piece was written by Rachel Korn. Rachel has been featured in our Admissions Expert series and is a former University of Pennsylvaniaadmissions officer, as well as the founder of her own admissions consulting firm. In your search for your right college, there is no better single piece of data to collect than how you feel with your feet on a campus. Heres how to maximize your visits:1. Research beforehand. Visit school websites to get information about their scheduled visitor activities and plan ahead. If you have to pre-register for a tour, an information session or an interview, do that well in advance, especially if you will be visiting at a busy time - during high school breaks and in the summers. Investigate how to visit more than one school in a day, too (many people do). If you will be in a city like Boston, for example, with 60 colleges and universities in and around it, you could definitely visit 2 schools in one day with the right planning. 2. Dress the part. You are interacting with the admissions office. While you do not have to dress up and you should definitely wear comfortable shoes for walking, you should wear clothes you would wear to school nothing too revealing. Your wardrobe is noticed. Dont make admissions officers uncomfortable talking to you.3. Take advantage of everything official offered. Attend information sessions; take campus tours; visit classes; lunch with students. All these activities are critical to build a well-rounded understanding of a school. The information session, with an admissions officer, will give you the facts and talk about the schools particular admissions process, and the tour and other interactions with students will give you the feel of the school. You get both the intellectual and the emotional experience.4. Ask questions. This is a unique chance to learn take advantage of it. Since no one knows you and since the admissions staff and student volunteers have probably heard it al l, there is a 99% chance that you cannot embarrass yourself. At the very least, collect student and staff e-mail addresses for questions later. If you are shy and prefer just to listen on tour, you can always pull the tour guide aside afterwards to ask. Same goes for the information session. If you have questions for the admissions officer but prefer not to speak during the presentation, you can ask the staff member afterwards or return to the admissions office later to speak one-on-one.5. Try to meet your admissions officer. You may have the chance to meet the person potentially reading your application and the applications from your area. It would not hurt to make a connection and show your seriousness if you have questions specifically for that person. Caution: if you have nothing intelligent to ask, though, it may be unwise to have the admissions officer called from his/her office to meet you. Make a positive impression with thoughtful questions.6. Check our facilities you hope to use. Think about your goals. Do you want to major in a science? Try to visit a lab. Are you interested in the performing arts? Drop by theater spaces.7. Go off the beaten path. Once the official offerings are over, dont leave yet. Stop random students to ask questions. Collect more opinions than just those of the tour guides who generally love their schools. This is especially important if you did not like a particular tour guide - try to understand if the person is representative of the school or if actually, there are many other kinds of people there like you. You can go to a student union or a major walkway and stop students. If doing this with your parents would feel embarrassing, try to send your parents to a caf on campus for an hour and venture on your own. They can do their research, you can do yours.8. Take notes. If you will visit several schools, jot down your impressions on each visit to differentiate the schools later. Libraries, dorms, cafeterias and sports complexe s will become frighteningly similar by the end.9. Keep an open mind. It may be that the specific dorm you see is not your taste or perhaps the tour guide is a bit strange or it is just a rainy, miserable day and you (and the college students) want to just hide inside. Perhaps you are there during the colleges break and it is a bit empty. Remember to take what you see in a bigger context and try not to let things like these unfairly color your feelings about a school. Believe it or not, these small things strongly influence your impression, so try to separate a bad day from a bad fit campus.10. Enjoy! Have a great time seeing what college life is like and have fun learning what makes each school unique. Remember: Schools admit a great number of students who cannot visit prior to applying due to their finances or their distances from the campuses. It is not held against you if you cannot visit due to these reasons (admissions officers realize that) - you can prove in your application how much you are interested, and admissions should happily admit you if you fit their criteria. The visit is a chance for you to learn more than it is a chance to influence your application. There is a fairness to the system. Visit RachelsAdmissions Consultingsite. The views expressed in this article do not necessarily represent the views of Varsity Tutors.

How to Make Composing Fun for Singers and Pianists

How to Make Composing Fun for Singers and Pianists Suzy S. Want to learn how to compose a song, but not sure where to start? Here, Saint Augustine, FL teacher Heather L.  shares her strategy for teaching the process and making it fun at the same time! Read on to learn more Teaching my voice and piano students how to compose a song is a huge part of my curriculum. It is multi-functional, in that it works to hone students sightsinging, musicianship, creativity, and theory knowledge in practice. And with most students out of school for the summer, its a great time to do something out-of-the-box, like composing! One of the easiest ways to get even the youngest students to write and then sightread their own music is a simple game. First, on a sheet of staff paper, I draw a five-note scale in a tessitura where the singers comfortable. If the student is a pianist, Ill choose a position where theyre comfortable. I prefer the simplicity of C major for beginners, but I might use an entire scale for more advanced students. Below it or beside it, I draw a series of notes. For instance, for my six-year-old voice student, Ella, I drew a quarter note, then a half note, then a dotted half, then a whole note. Depending on the students theory level, I sometimes write the number of beats beside each kind of note. Now, the fun begins. Ill ask the student to choose a note from the scale thats been custom tailored, so to speak, just for his theory level. Then Ill ask him to choose what kind of note well use. So my voice student, Ella, asks, May I please have an F and a half note? I write a half note on F. Ella then asks, May I please have a G and a dotted half note? I reply, No, Ella. Its in 4/4 time. Only four beats fit into this measure. With a dotted half added to a half, thatd be five beats. Thats too many. Okay, Ella says, Ill take a quarter note on C and a quarter note on D. Many of the best piano curriculum books feature a few exercises in which you must write a few measures of melody, but this game extends it and makes it accessible either for voice students who dont have those books or for piano students who may not be quite ready for the exercise of simply coming up with something. Eventually, of course, you will slowly grow to take charge of this game and be able to compose a song more freely and independently. As that time comes along, Ill begin to allow more freedom with only some constraints. For instance, if youre an intermediate student, I would ask you to write your own eight measure piece, but Ill give you the time signature, the key signature, and perhaps the left hand chord progression. Making it even more fun could mean writing some lyrics first and trying to write the melody to match. When I was growing up, it was always the running joke that singers were the dumbest of the musicians when it comes to theory and composition. Often, pianists werent regarded much more highly. But perhaps, thats because they were never given the encouragement needed even to try. Heather L. teaches singing, piano, acting, and more in Saint Augustine, FL, as well as through online lessons. She is  a graduate of the prestigious Westminster Choir College in Princeton, New Jersey, and has performed with the New York and Royal Philharmonics, the New Jersey and Virginia Symphonies, the American Boy Choir, and the internationally renowned opera star, Andrea Bocelli. Learn more about Heather here! Interested in Private Lessons? Search thousands of teachers for local and live, online lessons. Sign up for convenient, affordable private lessons today! Search for Your Teacher Photo by Tim RT

What Are The Best Isometric Exercises

What Are The Best Isometric Exercises What Are The Best Examples Of Isometric Workouts? ChaptersWhat Is An Isometric Exercise ProgramWhat Are The Benefits Of Isometric ExerciseWhat Are The Disadvantages Of Isometric ExerciseHow To Do An Isometric Exercise Workout?If you have ever been to a yoga or pilates class, or generally know what yoga or pilates looks like. Then you would have a basic idea about what isometric exercises are. I have met quite a few people who roll their eyes at yoga when you express how tired you are at the end of a class. Once they try yoga or pilates class, however, they get a better idea of the power of isometric workouts for strength training and full body conditioning. 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The muscles remain in a static contraction and demand the muscle to use tension while in a posture without movement.   When practising exercise the body is strengthened by contracting the muscles, there are three ways that the muscle groups can be contracted.Concentric contraction means that your muscles are shortening during the posture.Eccentric involves the lengthening of the muscleIsometric is when the muscle neither lengths or shortensWhile following your isometric fitness program, you will notice that different postures target different areas of your body. Thus you can engineer the results that you would like to have by practising certain postures more than others. An isometric workout can be great for bodybuilders, powerlifters, for rehabilitation, for toned bodies and overall muscular strength.Paused Squats make perfect isometric ab postures. Photo Source: UnsplashWhat Are The Benefits Of Isometric ExerciseEveryone is talking about cardio and even weight training but how about Isometrics? This method can be advantageous and can help you to improve your exercise program, your muscle and strength routine and also your overall health.The benefits for this exercise method are proof enough that you should consider adding isometrics into your routine.As you get older, you lose muscle tone, the ability to digest essential amino acids and flexibility. But isometric exercises with regular practice can allow you to maintain your muscle strength. In fact, isometric exercises are a necessary kind of strength training for an older person who would like to stay healthy and mobile and for everyone else who would want to avoid muscular decline.If you have or have had damaged muscles in your lifetime, this method can help you to rehabilitate your Reducing the time for full recovery of your muscles. While it may seem like a go od idea to just sit and rest, healing muscles you would like to recover stronger should be trained back into full health. Isometrics are great at this because they don’t put too much strain on your muscles and joints.Isometric exercise gives you the most significant amount of muscle activation which is what allows you to build stronger muscles. It also programs the muscle to work up to its maximum potential.Whether you want big bulking muscles or small toned ones, isometric workouts focus on strengthening the muscle from the inside out. The longer that you are able to tense the muscle is the more significant that your muscle growth will be. The more repetitions that you make is, the stronger that your muscles will become. So you really can shape your workout to suit the outcome that you desire.If you are short on time but really want to work out, you should try isometrics as you get great results in a very short space of time. When compared to cardiovascular exercise, weight lifti ng or bodyweight exercises, Isometrics shine through as having a big return for very little time commitment.Hooray! You can do these exercise anywhere because the only thing that is required is you. No equipment required.Another reason that this type of exercise also saves you time is that it targets all of the major muscle groups in your body. This is the true king of full body All you need to do is hold your pose while pushing against an immovable object which most of the time will be a wall or the floor.If the above wasn’t enough to convince you, isometric training is also a kind of resistance training. In certain positions, your body acts as a weight with gravity which adds When you remember to incorporate them this will improve the flexibility of your body.This one is not exclusive to isometric exercises, and all types of exercise can claim this. Here goes! Practising this workout will fill you with endorphins. Endorphins are the happy chemical which helps you get rid of depr ession, stress and sadness.Advanced plank pose is the ultimate isometric ab exercise. Photo Source: UnsplashWhat Are The Disadvantages Of Isometric ExerciseOf course, there are always two sides to every story and while the benefits certainly far outshine the disadvantages. It is worth looking at the weaknesses of Isometric exercise.When you compare isotonic exercises like weight lifting with isometrics. Isotonic exercises always win, as they help you to gain a full range of strength and also supports maintained strength. Isometric workouts tend to strengthen the muscle based on one angle only.Isometrics do put some stress on your arteries and your heart. Which makes this potentially unsafe for people with heart conditions or high blood pressure.Check the web for an online personal trainer.How To Do An Isometric Exercise Workout?If you work out regularly, then you probably know something about how to put a workout routine together. But as you know isometric workouts require holds wit h no movement.Learn more aboyt isometric exercise with the expertise of a personal trainer.The Rules To Ace Any Isometric Workouts:Keeping your muscles active for the duration of the posture is essential, so squeeze your muscles tightly.You must remember to breathe, it is a good idea to take deep breaths. Breathe in slowly to the count of 5 and breathe out slowly to the count of 5. This ensures your muscles are getting the oxygen they need in between holds.Your form is everything in isometrics, make sure to take your time to focus on your form and getting the posture just right.Don’t just use isometrics as your only workout. For good health make sure to be practising a variety of exercise types. All exercises have value and can help you come closer to your ideal body and achieve your fitness goals.Example Of Isometric Shoulder ExercisesHaving strong shoulders is essential if you hope to have good quality mobility in the arms. This can help you with everything from carrying the hea vy shopping home to lifting weights.Shoulder raises are a tremendous isometric exercise to include in your fitness workout. To make sure that your shoulders remain flexible and have full mobility. You should incorporate shoulder holds into your daily routine.How Do I Do The Shoulder Raise?Standing upright with your feet facing the direction that you are facing and together.Become aware of your shoulders and let your shoulders relax fully.If you need to shrug them to release any tension, do so.Without bending your arms or elbows, raise your shoulders to your ears and hold for 10-15 secondsBring them back down again slowly and stopping in the resting posture.Relax for a few seconds and then repeat.Shoulder Raises Best Practice Is:To make it more challenging hold dumbbells in each hand.Look straight ahead and level your head on your neck.Stand up straight in a well-balancedArms and legs should be straight.You should be balanced on both legs equally.Side bends make great isometric shoul der exercises. Photo Source: UnsplashExample Of Isometrics For Ab ExercisesHaving a flat and toned stomach with a 6 pack is the goal of most bodybuilders. When working on your abdominal area, you need a powerful but easy workout to give maximum results. The plank is one of these exercises, which comes from yoga but is actually an isometric posture.The plank can tone the entire body and doesn’t neglect the abs. This exercise is famous for good reason, and it is one thing that you can find incorporated into many workout routines despite the kind of workout. Yogi’s practice this posture, as well as athletes or bodybuilders, do.How Do I Do The Plank?Get down to the floor.Assume the push-up position.Tighten your abs, your belly button should be pulled back towards your spine, your limbs and torso should be straight and firmly planted.Hold the pose for 10 seconds and thenPlank Best Practice Is:Stabilise the surfaces of supporting areas (the feet and the hands).It is necessary to  stre tch the legs and raise up off your arms. Don’t slouch.Your body should be as straight as a plank of wood, you bottom sinking in or sticking out.It is necessary to  get into and out of this posture slowly.If you want to know more about how to implement isometric exercises into your workout routine. Contact a personal trainer or gym instructor who will guide you, on how to build your perfect method to achieve the result that you are looking for.Discover what the Lafay workout method entails here.