Chemical Reactions Flashcards
1
Q
what is evidence of a chemical reaction?
A
color change
temperature change
odor
precipitate (solid) formed
gas bubbles formed
2
Q
What is a Formation Reaction?
A
Two elements react to form a compound.
3
Q
What is a Decomposition Reaction?
A
A compound is broken down into its elements
4
Q
What is a Hydrocarbon Combustion Reaction
A
Burning a compound made of carbons and hydrogens
5
Q
what is a Single Replacement Reaction?
A
Metal element replaces cation OR non-metal element replaces anion
6
Q
what is a double Replacement Reaction?
A
Cations replace each other
7
Q
What is the Law of Conservation of Mass
A
Mass must
remain constant in a chemical reaction.
