Sometimes, chemists want to quickly recognize ions or chemical species present in a compound. Current in an electrical circuit is the amount of charge with respect to time. To balance a chemical equation, enter an equation of a chemical reaction and press the Balance button. You must understand both in order to read and to use chemical equations successfully. Answer Save. Or is it of the solute? The balanced equation will appear above. For example if you have 2.6999 g of NH4Cl in water, and you observed a temperature change from 24.0 to 20 C, what would the enthalpy change be? Looking for the definition of I? I = q / t what do the letters stand for is this equation? Note the presence of a two in front of the hydrogen and also the water. Such a formula resembles the structural type in that it consists of symbols representing atoms of the constituent elements connected to each other by dashes or curves that stand for chemical bonds. Subscripts and Parentheses. Here is the example equation again: 2 H 2 + O 2---> 2 H 2 O. So [AgCl] represents the molar concentration of AgCl. Earlier symbols for chemical elements stem from classical Latin and Greek vocabulary. 9 Answers. These numbers give two very important pieces of information about the equation. Favorite Answer. The calculations for the ideal gas law are comparison of the Pressure and Volume of gas based upon amount and temperature. What does alc stand for in a chemical equation? Element symbols for chemical elements normally consist of one or two letters from the Latin alphabet and are written with the first letter capitalised.. Andres K. 1 decade ago. If im not wrong, thats the formula for current. Examples: Fe, Au, Co, Br, C, O, N, F. Ionic charges are not yet supported and will be ignored. Like aqueous means it's in a solution of H20? Is it alcohol? Find out what is the full meaning of I on Abbreviations.com! I know aqueous, liquid etc,but am unsure of alc. as in it is an alcohol solution? The Clausius-Clapeyron equation allows us to estimate the vapor pressure at another temperature, if the vapor pressure is known at some temperature, and if … 'Internet' is one option -- get in to view more @ The Web's largest and most authoritative acronyms and … A projection formula is a two-dimensional representation of what is actually a three-dimensional molecule. These are called the coefficients. Relevance. Chemical symbols are abbreviations used in chemistry for chemical elements, functional groups and chemical compounds. The basic formula is PV = nRT where P = Pressure in atmospheres (atm) V = Volume in Liters (L) n = of moles (mol) R = the Ideal Gas Law Constant T = Temperature in Kelvin (K) The value n is the amount of the gas measured as moles. a and b represent coefficients used to balance the equation (aq) and (s) indicate which state the product is in (aqueous or solid, respectively) Brackets stand for molar concentration. That is charge per time. I know that Cs is equivalent to the mass of the solution + specific heat, also written as: ΔH = mcΔT Is "c" the specific heat of the WATER in the solution? Use uppercase for the first character in the element and lowercase for the second character. The chemical formula C 2 H 4 O 2 is correct, but the formula CH 3 COOH gives chemists a clearer picture of the molecule. 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