Chemical Reations Flashcards
(9 cards)
1
Q
Chemical reaction
A
Process in which atoms are rearranged to produce new substances
2
Q
Chemical equations
A
Expression to show the relationship between reactants and products
3
Q
Reactant
A
The substances participate in(start) a chemical reaction
4
Q
Products
A
The substances forming in a chemical reaction
5
Q
A 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 in equation
7
Q
Endothermic reaction
A
A chemical reaction with a import of energy
8
Q
Exothermic reaction
A
Chemical reaction with an output of energy
9
Q
A
