Question

conservation of mass
what information is given in a chemical equation?
1 a chemical equation shows the substances before a chemical reaction, called the (products / reactants), and the substances after the reaction, called the (products / reactants). the yield arrow points toward the (products / reactants).
coefficient
4fe + 3o₂
reactants
subscript
2fe₂o₃
products
chemical formula

Explanation:

Step1: Recall chemical - equation info

A chemical equation shows the number of atoms of each element, the physical states of substances, and the mole - ratios of reactants and products.

Step2: Identify key info

The coefficients tell the mole - ratios of reactants and products. Subscripts indicate the number of atoms of an element within a molecule. Chemical formulas represent the substances involved. Physical states (not shown in this simple example) can also be indicated (s for solid, l for liquid, g for gas, aq for aqueous).

Answer:

The chemical equation provides information about the identities of reactants and products, the mole - ratios of reactants and products (from coefficients), the number of atoms of each element in the substances (from subscripts and chemical formulas).