WorksheetsUnit 5 Chemical Reactions
Total questions: 15
Worksheet time: 26mins
Which one is true?
Adding a Catalyst lowers the rate of reaction
Lowering the concentration lowers the rate of reaction
Increasing surface area raises the rate of reaction
Increasing the temperature lowers the rate of reaction
In a chemical reaction, everything to the right of the arrow is called ______________.
Molecules
Yields
Products
Reactants
Give the reactants in the following equation:
CH4 + 2O2 → CO2 + H2O
CH4 and CO2
2O2 and CO2
CH4 and 2O2
2O2 and H2O
3Ca + 2AlCl3 --> 3CaCl2 + 2Al
Synthesis
Decomposition
Single replacement
Double replacement
In order balance a chemical equation, you must change the -
coefficients
gas into solids
subscripts
type of compounds reacting
What type of reactions is this:
C3H8 + O2 --> H2O + CO2
Synthesis (combination)
Decomposition
Single replacement
Combustion
Which number should go in the blank?
_ H2 + O2 --> 2 H2O
1
2
3
0
2H2 + O2 --> 2H2O
MgCl2 + Li2CO3 ----> MgCO3 + 2 LiCl
Synthesis
Decomposition
Single replacement
Double replacement
