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- 1. Multiple Choice
Identify the following chemical reaction.
2 NaBr + 1 Ca(OH)2 ----> 1 CaBr2 + 2 NaOH
Synthesis
Decomposition
Single replacement
Double replacement
- 2. Multiple Choice
Identify the following chemical reaction.
Pb + FeSO4 ----> PbSO4 + Fe
Synthesis
Decomposition
Single replacement
Double replacement
- 3. Multiple Choice
What reaction has the following general formula:
AB --> A + B
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
- 4. Multiple Choice
What reaction has the following general formula:
A + B --> AB
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
- 5. Multiple Choice
Which chemical reaction always starts with a hydrocarbon that reacts with oxygen and produces carbon dioxide and water?
Decomposition
Synthesis
Combustion
Single Replacement
- 6. Multiple Choice
In a chemical reaction, everything to the RIGHT of the arrow is called ______________.
Product(s)
Yields
Molecules
Reactant(s)
- 7. Multiple ChoiceAt the end of chemical reactions, what is the total mass of the reactants compared to the total mass of the products?the product is doubledthe product is half the mass of the reactantsthe mass is the samethe mass changes depending on the reaction
- 8. Multiple Choice
Combination
Decomposition
Single Replacement
Double Replacement
Combustion
- 9. Multiple ChoiceWhich of the following is an example of a chemical change?melting a stick of butterdissolving salt in waterusing magnesium to displace hydrogen gas from water
- 10. Multiple ChoiceWhich of the following is an example of a physical change to matter?rustingdigestionfreezing
- 11. Multiple Choice
In a chemical reaction, everything to the LEFT of the arrow is called ______________.
Product(s)
Yields
Molecules
Reactant(s)
- 12. Multiple Choice
According to _______, matter is neither destroyed nor created during a chemical reaction. This is why we have to balance equations.
the Law of Conservation of Mass
Newton’s Law
the Law of Chemical Reactions
the Law of Conservation of Energy
- 13. Multiple Choice
In a chemical reaction, (aq) written after a compound means that:
the compound is flammable.
the compound is dissolved in water.
the compound will melt.
the compound is unstable.
- 14. Multiple Choice
Changing the subscript in a chemical formula changes _______.
nothing
the identify of the substance so that it becomes a different compound
the electrical charge on the atoms of that substance
the amount of that substance
- 15. Multiple Choice
A solid compound that forms and settles out of a solution during a double displacement reaction is called _______.
a solid
a catalyst
a precipitate
a reactant
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