- published: 08 Sep 2010
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A chemical formula is a way of expressing information about the proportions of atoms that constitute a particular chemical compound, using a single line of chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus (+) and minus (−) signs. These are limited to a single typographic line of symbols, which may include subscripts and superscripts. A chemical formula is not a chemical name, and it contains no words. Although a chemical formula may imply certain simple chemical structures, it is not the same as a full chemical structural formula. Chemical formulas can fully specify the structure of only the simplest of molecules and chemical substances, and are generally more limited in power than are chemical names and structural formulas.
The simplest types of chemical formulas are called empirical formulas, which use letters and numbers indicating the numerical proportions of atoms of each type. Molecular formulas indicate the simple numbers of each type of atom in a molecule, with no information on structure. For example, the empirical formula for glucose is CH_{2}O (twice as many hydrogen atoms as carbon and oxygen), while its molecular formula is C_{6}H_{12}O_{6} (12 hydrogen atoms, six carbon and oxygen atoms).
In science, a formula is a concise way of expressing information symbolically as in a mathematical or chemical formula. The informal use of the term formula in science refers to the general construct of a relationship between given quantities. The plural of formula can be spelled either as formulas or formulae (from the original Latin).
In mathematics, a formula is an entity constructed using the symbols and formation rules of a given logical language. For example, determining the volume of a sphere requires a significant amount of integral calculus or its geometrical analogue, the method of exhaustion; but, having done this once in terms of some parameter (the radius for example), mathematicians have produced a formula to describe the volume: This particular formula is:
Having obtained this result, and knowing the radius of any sphere in question, we can quickly and easily determine its volume. Note that the volume V and the radius r are expressed as single letters instead of words or phrases. This convention, while less important in a relatively simple formula, means that mathematicians can more quickly manipulate larger and more complex formulas. Mathematical formulas are often algebraic, closed form, and/or analytical.
Arithmetic Sequences: Finding a General Formula Given Two Terms. In this video, we have values for a_21 and a_51 and we have to find the general formula for the arithmetic sequence: a_n.
Hola, en este video les dejo la formula general expliucada de una forma super sencilla y moderna, espero y les sirva, recuerden que pueden ver el video las veces que sea necesario para entender el tema. Sígueme en mis redes sociales!! Contacto/Negocios/Prensa: luisdanielcarreonbaylon@gmail.comFACEBOOK: https://www.facebook.com/carrrrreon?r...TWITTER: https://twitter.com/ProfeCarreon Sígueme en mis círculos: https://plus.google.com/u/0/+LuisDani... SUSCRIBETE!!!
► My Sequences & Series course: https://www.kristakingmath.com/sequences-and-series-course Learn how to use a list of the first several terms of the sequence to find a formula for the general term of the sequence, a_n ● ● ● GET EXTRA HELP ● ● ● If you could use some extra help with your math class, then check out Krista’s website // http://www.kristakingmath.com ● ● ● CONNECT WITH KRISTA ● ● ● Hi, I’m Krista! I make math courses to keep you from banging your head against the wall. ;) Math class was always so frustrating for me. I’d go to a class, spend hours on homework, and three days later have an “Ah-ha!” moment about how the problems worked that could have slashed my homework time in half. I’d think, “WHY didn’t my teacher just tell me this in the first place?!” So I started tut...
Álgebra - Capítulo 10 - Ecuaciones cuadráticas (playlist): https://www.youtube.com/playlist?list=PLEwR-RTQiRPVQdDRnLLmUtrE5pPA8IK_b SUSCRÍBETE: http://bit.ly/VN7586 (NO OLVIDES DAR UN ¨LIKE¨) VISITA: http://math2me.com FB: http://bit.ly/FBmath2me G+: http://google.com/+math2me Twitter: http://bit.ly/14ql1b7 (Video explicado por José Andalón) Help us caption & translate this video! http://amara.org/v/FPMg/
#julioprofe explica cómo resolver una ecuación cuadrática utilizando la Fórmula Cuadrática. REDES SOCIALES Facebook → https://www.facebook.com/julioprofenet Twitter → https://twitter.com/julioprofenet Instagram → https://www.instagram.com/julioprofenet SITIO OFICIAL → http://www.julioprofe.net APP JULIOPROFE Para Android → https://goo.gl/XsJRwN Para iOS → https://goo.gl/3y2VtR
Alkanes, alkenes ,alkynes, alcohols, aldehydes, ketones, carboxylic acids.
The general term of a binomial expansion, also known as the (r+1)th term. The general term formula allows you to find a specific term inside a binomial expansion without the need to fully expand the series. It is useful to find a specific term with a specific power inside a binomial expansion. For example find the term with x^3 in (x^2 + 1/2x)^9. If you like what you see, please subscribe to this channel! http://www.youtube.com/subscription_center?add_user=numberskill For more videos, please visit http://www.numberskill.com/board-casts-on-youtube/#Bookmark Like us on Facebook http://www.facebook.com/garyang.math Follow us on Google+ https://plus.google.com/117074002101017934426/posts
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The general formula for solving quadratic equations. If you like what you see, please subscribe to this channel! http://www.youtube.com/subscription_center?add_user=numberskill For more videos, please visit http://www.numberskill.com/board-casts-on-youtube/#Bookmark Like us on Facebook http://www.facebook.com/garyang.math Follow us on Google+ https://plus.google.com/117074002101017934426/posts
CLASS 10 | GENERAL FORMULA OF ALKANE, ALKENE, ALKYNE | TX ACADEMY
For more videos and interactive applets, please visit http://www.MathVillage.info Learn how to write a formula for finding the nth term when given an arithmetic sequence.
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This video explains how to find the general formula for a sequence in fraction form. (Arithmetic/Geometric) http://mathispower4u.com
Geometric Sequences: A Formula for the' n - th ' Term. In this video, I derive the formula to find the 'n-th' term of a geometric sequence by considering an example. I then use the formula to find another term of the sequence.
SUSCRÍBETE: http://bit.ly/VN7586 (NO OLVIDES DAR UN ¨LIKE¨) VISITA: http://math2me.com FB: http://bit.ly/FBmath2me G+: http://google.com/+math2me Twitter: http://bit.ly/14ql1b7 (Video explicado por José Andalón) Help us caption & translate this video! http://amara.org/v/En8v/
webpage-http://www.kentchemistry.com/links/naming/formulawriting.htm This short video take you through the steps to writing a variety of chemical formulas correctly. Form Binary ionic to names with Roman Numerals and poly atomic ions. I discuss the use of parenthesis and what the Roman Numeral means. My Examples Potassium sulfide,Calcium nitride, Silver cyanide, Iron (II) phosphate and lead(IV) hydroxide.
Se obtiene la derivada de la funcion x^3-1 usando la regla o formula general de derivacion, usando 4 pasos
We will talk about what empirical formula and molecular formula are, how they are different, and we'll learn how to write the empirical formula for a compound when you are given the molecular formula. Molecular formulas tell you how many atoms of each element are in a compound, and empirical formulas tell you the simplest or most reduced ratio of elements in a compound. If a compound's molecular formula cannot be reduced any more, then the empirical formula is the same as the molecular formula. Also, many compounds with different molecular formula have the same empirical formula.
In this video, we will discover how to rotate any vector through any axis by breaking up a vector into a parallel part and a perpendicular part. Then, we will use vector analysis (cross products and dot products) to derive the Rodrigues rotation formula and finish with a quaternion point of view. Using quaternions allows us to write a very compact formula which will be familiar to those who have used quaternions to do rotations.
This Sutra is a General Formula applicable to all cases of multiplication. The applications of this brief and terse Sutra are manifold. In this video we are taking it up in its most elementary application namely, to multiplication in general.
Einstein's Field Equations for General Relativity - including the Metric Tensor, Christoffel symbols, Ricci Cuvature Tensor, Curvature Scalar, Stress Energy Momentum Tensor and Cosmological Constant.
Chapter 5 The largest distinction between the two forms appears through the result of each. During C-M-C, a commodity sold will be replaced by a commodity bought. In this form money only acts as a means of exchange. The transaction ends there, with the exchange of use-values and the money has, according to Marx, "been spent once and for all." The C-M-C form facilitates the exchange of one use-value for another. On the contrary, during M-C-M, money is essentially exchanged for more money. The person who invested money into a commodity sells it for money. The money returns to the initial starting place, so the money is not spent, as in the C-M-C form of exchange, but instead advanced. The only function of this process lies in its ability to valorize. By withdrawing more money from circula...
Lecture 1 of Leonard Susskind's Modern Physics concentrating on General Relativity. Recorded September 22, 2008 at Stanford University. This Stanford Continuing Studies course is the fourth of a six-quarter sequence of classes exploring the essential theoretical foundations of modern physics. The topics covered in this course focus on classical mechanics. Leonard Susskind is the Felix Bloch Professor of Physics at Stanford University. Stanford Continuing Studies: http://continuingstudies.stanford.edu/ About Leonard Susskind: http://www.stanford.edu/dept/physics/people/faculty/susskind_leonard.html Stanford University Channel on YouTube: http://www.youtube.com/stanford
My longest video yet, power series solution to differential equations, solve y''-2xy'+y=0, www.blackpenredpen.com
Learn the method you need to crack IELTS Reading for both General and Academic! Our expert teacher Jay from E2Language will guide you through the process. More on our website at: https://www.e2language.com/ Sign up for our free IELTS trial: http://bit.ly/2ntt8Q7 IELTS Webinars are now open to all users! Yes, it’s free to register and participate in this LIVE TRAINING with our IELTS teachers: IELTS General Writing Task 1 – Every Monday! http://bit.ly/2kLJpDB IELTS Academic Writing Task 1 – Every Tuesday! http://bit.ly/2ykS2dq IELTS Writing Task 2 (Academic & General) – Every Wednesday! http://bit.ly/2g6tvPc IELTS Reading (Academic & General) – Every Thursday! http://bit.ly/2gAaepV IELTS Super Methods! – Every Second Friday! http://bit.ly/2yid8aI The IELTS reading section (like al...
camotina, como te lo prometi, aqui esta la explicacion de la formula general, si tienes dudas o algo pregunta o si no en el video viene que procedera
(C) Stephen Easley Walsh. All rights resevered. https://www.MathsGrinds.ie/
Si te haz preguntado de donde sale la famosa formula general de la ecuacion guadratica, aqui te muestro como se obtiene.
General Relativity & curved space time: Visualization of Christoffel symbols, Riemann curvature tensor, and all the terms in Einstein's Field Equations. My Patreon page is at https://www.patreon.com/EugeneK
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What is general relativity? When physicists talk about Einstein's equation they don't usually mean the famous E=mc2, but another formula, which encapsulates the celebrated general theory of relativity. Einstein published that theory a hundred years ago, in 1915. To celebrate its centenary Plus (plus.maths.org), our free online mathematics magazine, asked physicist Professor David Tong of the University of Cambridge to explain what general relativity is and how Einstein's equation expresses it. Watch his explanation in this video, or read more in his article on Plus at https://plus.maths.org/content/what-general-relativity
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The basic physics of a black hole, the Schwarzschild radius, energy, temperature, mass and entropy and Hawking radiation
Aquí les enseño a factorizar por medio de ejemplos