Chemical Reactions Flashcards
1
Q
Chemical reaction
A
A process in which atoms are arranged to produce a new substance
2
Q
Chemical equation
A
Expression to show the relationship between reactions + products
3
Q
Reactions
A
The substance that participate(start) a chemical reaction
4
Q
Products
A
The substances that are formed in a chemical reaction
5
Q
Law of conservation of mass
A
Matter cannot be created or destroyed
6
Q
Coefficient
A
The number in front of a chemical formula and it can be changed to balance an equation
7
Q
Endothermic reaction
A
Chemical reaction with an input of energy
8
Q
Exothermic reaction
A
Chemical reaction with an output of energy
