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- 1. Multiple Choice
Aluminum reacts with iron nitrate to form aluminum nitrate and iron. What is the reactant, or what are the reactants, in this chemical equation?
aluminum nitrate
iron and aluminum
aluminum and iron nitrate
aluminum nitrate and iron
- 2. Multiple Choice
In the decomposition reaction of aluminum oxide, what is/are the product(s)?
Al2O3 ==> Al + O2
Al
O2
Al & O2
Al2O3
- 3. Multiple Choice
What is true of the following chemical reaction?
Hg + O → HgO
The mass of the individual reactants together is more than the mass of the product.
The mass of the products is equal to the mass of the reactants.
The mass of oxygen does not add to the equation because it is a gas.
The mass of the products is more than the mass of the reactants.
- 4. Multiple Choice
Your car burns gasoline with air to make heat. Where does most of this energy come from?
chemical bonds of the gasoline
energy stored in the pistons of the engine
spark plugs
air
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