How is a chemical equation defined?

Answer 1

When a chemical reaction occurs, it can be described by an equation.

This shows the chemicals that react (called the reactants) on the left-hand side, and the chemicals that they produce (called the products) on the right-hand side. The chemicals can be represented by their names or by their chemical symbols.

Unlike mathematical equations, the two sides are separated by an arrow, that indicates that the reactants form the products and not the other way round.

Any chemical change in substance whether combination, decomposition, displacement or arrangement of the molecules of the substance which involves the transformation of matter into a new substance is termed as chemical equation.

Answer 2

A chemical equation is a symbolic representation of a chemical reaction using chemical formulas to show the reactants and products involved, as well as the stoichiometry of the reaction. It indicates the substances present before and after the reaction, and the conservation of mass and atoms is maintained.

Answer 3

A chemical equation is symbolic representation of a chemical reaction where the reactant entities are given on the left hand side and the product entities on the right hand side.[1] The coefficients next to the symbols and formulae of entities are the absolute values of the stoichiometric numbers. The first chemical equation was diagrammed by Jean Beguin in 1615.

Answer 4

the transfer of atoms from one group of molecules to another group of molecules. the number of atoms themselves never changes, but the molecules can. It is essentially a reordering of the atoms

e.g. 2H + O --> H2O

Answer 5

chemical equations are a formal algebra that permits the calculation of chemical reactions.

Answer 6

For photosynthesis: CO2+H2O+photons (from sunlight)----> O2+H2O+sugar

Answer 7

A chemical equation is defined as an expression summarizing a chemical reaction. It may be written in words, e.g. zinc + sulfur --> zinc sulfide. or in symbols, e.g. Zn + S --> ZnS.

Answer 8

Chemical equation refers to a symbolic representation of a chemical reaction

Answer 9

A chemical equation is a graphical representation of a chemical reaction.

Answer 10

a chemical reaction