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Science
10th -
12thgrade
Reaction Types and Balancing Chemical Equations Review
20 questions
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- 1. Multiple ChoiceTwo Reactants and One ProductDecompositionSynthesisCombustionSingle Replacement
- 2. Multiple ChoiceOne reactant into several products.DecompositionSynthesisCombustionSingle Replacement
- 3. Multiple ChoiceOne element replaces another in a compound.SynthesisCombustionSingle ReplacementDouble Replacement
- 4. Multiple ChoiceAlways starts with a Hydrocarbon that reacts with oxygen and produces carbon dioxide and water.DecompositionSynthesisCombustionSingle Replacement
- 5. Multiple Choice
The metal ions in two compounds switch.
Synthesis
Combustion
Single Replacement
Double Replacement
- 6. Multiple Choice
What is the type of reaction shown above?
Synthesis
Decomposition
Single Replacement
Double Replacement
- 7. Multiple ChoiceThis pictures simulates what type of reaction?SynthesisDecompositionSingle ReplacementDouble Replacement
- 8. Multiple Choice
Identify the reaction type:
C2H6 + O2 --> CO2 + H2O
Double replacement
Synthesis
Acid base
Combustion
- 9. Multiple Choice
Identify the reaction type for the following equation:
K + F2 --> KF
Double replacement
Single Replacement
Synthesis
Decomposition
- 10. Multiple Choice
Identify the type of reaction:
ZnCl2 + Mg --> Zn + MgCl2
Precipitate
Single Replacement
Double Replacement
Decomposition
- 11. Multiple Choice
PCl5 + ___ H2O → ___ HCl + H3PO4
4, 5
1, 6
3, 8
2,2
- 12. Multiple Choice
__ Al + __ FeO → Al2O2 + __ Fe
1, 1, 2
2,1,2
2, 2, 2
2,4,2
- 13. Multiple ChoiceMg + ___ HCl → MgCl2 + H21234
- 14. Multiple ChoiceWhich problem is balanced?PbO2 + 2H2SO2 + H20 --> H2SO42Na + 2H2O --> 2NaOH + H2
- 15. Multiple ChoiceBalance this equation.
_CF4 + _Br2 -- _CBr4 + _F22,1,2,11,2,2,11,2,1,22,2,2,2 - 16. Multiple ChoiceWhat is the little number after an element in a chemical equation called.
Example: H2CoefficientSubscriptAtomEquation - 17. Multiple ChoiceWhat does the Law of Conservation of Mass state?Matter cannot be gained or lost in a chemical reaction.Matter can only be lost in a chemical reaction.Matter can only be gained in a chemical reaction.Matter can be gained and lost in a chemical reaction.
- 18. Multiple ChoiceIs the equation balanced?: 2H2O + O2 --> 4MgO + 3FeYesNo
- 19. Multiple ChoiceIs this equation balanced?yesnoNot enough information
- 20. Multiple ChoiceWhen balancing equations a ____ can be placed to the left of a formula of a substance to make the equations balancedchargesubscriptrandom numbercoefficient
- Answer choicesTagsAnswer choicesTags