Science Flashcards
(9 cards)
1
Q
The process in which atoms are rearranged to produce new substances
A
Chemical reaction
2
Q
Expression to show the relationship between reactants+products
A
Chemical equation
3
Q
The substance that participate in (start) a chemical reaction
A
Reactants
4
Q
Substances that are formed in a chemical reaction
A
Products
5
Q
Matter cannot be created or destroyed
A
Law of conservation of mass
6
Q
The number in front of a chemical formula. Can change to balance equation
A
Coefficient
7
Q
Chemical reaction with an imput of energy
A
Endothermic reaction
8
Q
A chemical reaction with an output of energy
A
Exothermic reaction
9
Q
A
