Chemcial Reactions Flashcards
(8 cards)
1
Q
Chemical Reaction
A
Process in which atoms are rearranged to produce new substances
2
Q
Chemical Expression
A
Expression to show the relationship between reactants and products
3
Q
Reactants
A
The substances that participate(start) a chemical reaction
4
Q
Products
A
The substances formed in a chemical reaction
5
Q
Law of conservation of Mass
A
Matter cannot be created or destroyed
6
Q
Coefficient
A
Number in front of a chemical formula, can change to balance an equation
7
Q
Endothermic reaction
A
A chemical reaction with an input of energy
8
Q
Exothermic reaction
A
Chemical reaction with a output of energy
