Chemical Reactions Flashcards
(8 cards)
1
Q
Chemical reaction
A
A process in which atoms are rearranged to form new substances
2
Q
Chemical Equation
A
Expression to show the relationship between reactants + products
3
Q
Reactant
A
Substances that participate in (start) a chemical reaction
4
Q
Products
A
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
Number in front of a chemical formula. Can change to balance a chemical equation.
7
Q
Endothermic reaction
A
Chemical reaction with an input of energy
8
Q
Extothermic reaction
A
Chemical reaction with an output of energy
