4.3 Flashcards
The law conservation of mass
The mass is conserved in a chemical reaction
The total mass of the products is equal to the total mass of the reactants in a chemical reaction
The total number of each kind of atom at the start of the reaction is equal to the total number of each kind of atom after the reaction
Product
A chemical that forms in a chemical reaction
Reactant
A chemical that reacts in a chemical reaction
Word equation
A chemical equation that is written using chemical names
Coefficient
An integer places in front of a formula in a chemical equation
Skeleton equation
A chemical equation that is written using chemical formulas
Chemical reaction
A chemical change in which new substances are formed
Chemical equation
A set of chemical formulas that identify the reactants and products in a chemical reaction
Chemical change
Changes in the ways the atoms and molecules in a pure substance are arranged
Symbolic equation
A set of chemical symbols and formulas that identify reactants and products in a chemical reaction
Balanced chemical equation
Shows the indemnities of each pure substance involved as well as the matching number of atoms of each element on both sides
