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- 1. Multiple Choice
Which type of chemical reaction has two or more reactants to make one product?
combustion
single displacement
double displacement
synthesis
decomposition
- 2. Multiple Choice
Identify the following chemical reaction.
2 NaBr + 1 Ca(OH)2 ----> 1 CaBr2 + 2 NaOH
Synthesis (or combination)
Decomposition
Single displacement
Double displacement
- 3. Multiple Choice
Identify the following chemical reaction.
3 HBr + 1 Al(OH)3 ----> 3 H2O + 1 AlBr3
Synthesis (or combination)
Decomposition
Single displacement
Double displacement
- 4. Multiple Choice
Identify the following chemical reaction.
Pb + FeSO4 ----> PbSO4 + Fe
Synthesis (or combination)
Decomposition
Single displacement
Double displacement
- 5. Multiple Choice
What reaction has the following general formula:
AB --> A + B
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
- 6. Multiple Choice
What reaction has the following general formula:
A + CD --> C + AD
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
- 7. Multiple Choice
What reaction has the following general formula:
AB + CD --> CB + AD
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
- 8. Multiple Choice
What reaction has the following general formula:
A + B --> AB
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
- 9. 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
- 10. Multiple Choice
Which phrase describes what happens to atoms in a chemical reaction?
never lost or gained, just rearranged
sometimes lost, never rearranged
sometimes lost, gained, or rearranged
lost or gained, never rearranged
- 11. Multiple ChoiceIn a chemical reaction, everything to the right of the arrow is called ______________.ProductsYieldsMoleculesReactants
- 12. Multiple ChoiceCoal contains carbon and other elements. Carbon dioxide forms when coal burns in the presence of oxygen. Which of these is the best evidence that a chemical reaction occurs when coal burns?The shape of the coal changesOxygen is presentA new substance is producedCoal is made up of more than one element
- 13. 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
- 14. Multiple Choice
Which of the following is a compound?
zinc (Zn)
magnesium (Mg)
sodium chloride (NaCl)
potassium (K)
- 15. Multiple Choice
Which of the following is an element?
potassium chloride (KCl)
water (H2O)
carbon (C)
calcium carbonate (CaCO3)
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