4.3 Definitions Flashcards
1
Q
Chemical change
A
The transformation of one or more substances into different substances with different properties
2
Q
Chemical reaction
A
Process by which a chemical change occurs
3
Q
Reactants
A
Starting materials of a chemical reaction
4
Q
Products
A
Items made from chemical reactions that have different properties from the reactants
5
Q
Chemical equation
A
An equation that uses either words or symbols and formulas to describe the change that occurs during a chemical reaction
6
Q
Law of conservation of mass
A
A theory that stars that during a chemical reaction, the mass of the reactants is always equal to the mass of the reactants
7
Q
Skeleton equation
A
A chemical equation that is complete except for coefficients is an unbalanced equation or skeleton
