Give each chemical can be expressed by one or more equations. Prior to mark the element / compound

Valuation of chemical equations equation without changing the valence Oxidačno- reduction (redox) equation ionic equation calculations for pure substances Fabric curie amount of mass, volume substances (+ equation of state) Bulk Density stoichiometry of the compounds of Formula Calculation Calculation stoichiometric fraction of a percentage of the element in the compound solution composed of solutions Terminology Determination of Inorganic Substances valence elements Terminology Greek suffix and prefix names Trivial Things in chemistry
One of the most basic knowledge of chemistry is the ability quantification of chemical equations. The chemical formula curie is the registration of a chemical reaction, curie but to the left of the equation curie are the reactants (starting materials, Substance in the reaction), and the right, leaving the reaction products (compounds which are formed in the reaction). Equality between the left and right sides express the equal sign (=) at equilibrium storylines use two-way arrow , if the equilibrium is shifted to one side, we use one-way arrow .
Chemical equation includes qualitative (what?) And quantitative (how many?) Site of chemical action. Writing equation must therefore comply with the law of conservation of atoms of the same element, ie the sum of atoms of the same element curie on the left side must be equal to the sum of the carbon element on the right. It must also be complied with the conservation of charge, curie ie the total of the charges of the reactants must equal the total sum of the charges curie of products. The type and number of atoms at the right and left side of the chemical equation is identical. Thus, the sum of the masses of the reactants equals curie the sum of the weight of the products.
Give each chemical can be expressed by one or more equations. Prior to mark the element / compound curie formulas are given absolute values of stoichiometric coefficients. They are rational numbers, expressing the relationship between the amounts of reactants and products in a chemical reaction.
In practice, for expressing the amounts curie of reactants and products of amount of substance n (A); n (B) ... It should be noted, however, that the two concepts are not identical. Amount of substance indicates how many moles of the substance is in the system at that time. Amount of substance must therefore curie change curie over time, whereas the stoichiometric coefficients remain constant.
(Substance curie amounts of reactants can be numerically coincide with stoichiometric koeficientmi- e.g. if initially present in the system of reaction, curie the same amount of substance of the reactants, indicate how many stoichiometric coefficients. In practice, do not always use the exact stoichiometric quantities reaktantov- e.g. 1.2 equivalents was used one over the other reactant to accelerate the reaction. Sometimes even live at the beginning of the reaction products also present) equation without changing the valence Oxidačno- reduction (redox) equation Ionic Equations Tweet