Unit 5 Review: Name Give 3 ways (there are actually 5) you can tell something is going through a chemical change just by looking at it.
1.
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3.

2. In the following reaction identify the reactants & products? 2N2 + O2 2N2O
Reactants: Products:
Balance and Classify the following chemical equations: SR/DR/Decomp/Synthesis/Combustion Classify
N2 + H2 NH3

Na + H2O NaOH + H2

CaCO3 ___ CaO + CO2

___ Al + H2SO4 H2 + Al2(SO4)3 _

CH4 + O2 CO2 + H2O

If 14.1 grams of KClO3 decomposes into KCl and K2O. What is the total mass of the products formed? What law are you applying?

Using the activity series, predict which reactions will occur.
Complete the reaction for those that will proceed.
11. Mg + AlCl3

12.Ag + Cu(NO3)2
13. Na + H2O
14. Zn + PbCl2

Write the complete formula equation for the following word equation and then balance! Double check to make sure you have the state symbols!
Solid magnesium metal is mixed oxygen gas, producing solid magnesium oxide.


List the 7 diatomic molecules. Write the symbols as they would appear in a reaction.

Write the formula equation for the following:
Solid sodium is burned in the presence of oxygen gas forming solid sodium oxide.

Balance. Use state symbols. Classify