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- 1. Multiple ChoiceAn element plus additional element reacts to form one product is an example of which type of chemical reaction?combustiondecompositionsynthesissingle replacement
- 2. Multiple Choice
Which is the name of the kind of solid substance formed in this figure?aqueousprecipitateacidsynthesis - 3. Multiple ChoiceWhich type of reaction takes place in the presence of oxygen and produces carbon dioxide and water?double replacementdecompositioncombustionsingle replacement
- 4. Multiple ChoiceProvides evidence that a chemical reaction has occurred.dissolvingmeltingformation of a gasbending
- 5. Multiple ChoiceWhat type of chemical reaction takes place when fluorine reacts with sodium bromide?single replacementdouble replacementcombustionsynthesis
- 6. Multiple ChoiceWhat are the correct coefficients when this equation is balanced?
KClO3 --> KCl + O22,2,22,2,31,2,33,3,3 - 7. Multiple ChoiceIn a ___________change, a substance changes into a different substance.PhysicalChemical
- 8. Multiple ChoiceIn a chemical reaction, bonds are broken and new bonds are formed that create new substances. The bonds that are broken are called what?ReactantsProductsAtomsCatalysts
- 9. Multiple ChoiceThe Law of Conservation of Mass statesthat matter exists in all states and reacts the samethat matter can only be changed into new substances by introducing a catalystthat matter exists in the same state throughout any chemical changethat matter cannot be created or destroyed and that the mass of the products must equal the mass of the reactants
- 10. Multiple ChoiceHow many Al atoms are in this compound? 4Al2O32864
- 11. Multiple ChoiceHow many F atoms are in this compound?
6MgF226812 - 12. Multiple Choicea copper penny turning greenish after a few years.Chemical ChangePhysical Change
- 13. Multiple ChoiceAn gel ice pack getting cold after you put it in the freezer for an hour.Chemical ChangePhysical Change
- 14. Multiple ChoiceWhich of the following IS a physical change?Getting a haircutRusty metalsour milkA compound
- 15. Multiple Choice___________________ are the elements are compounds that leave (are formed in) a chemical
reaction.PolymersBondsReactantsProducts - 16. Multiple Choice2 NaBr + 1 Ca(OH)2 ----> 1 CaBr2 + 2 NaOHSynthesis (or combination)DecompositionSingle displacementDouble displacement
- 17. Multiple Choice2 NH3+ 1 H2SO4 ----> 1 (NH4)2SO4Synthesis (or combination)DecompositionSingle displacementDouble displacement
- 18. Multiple ChoiceNa3PO4 + 3 KOH ----> 3 NaOH + K3PO4Synthesis (or combination)DecompositionSingle displacementDouble displacement
- 19. Multiple ChoiceCaCO3 ----> CaO + CO2Synthesis (or combination)DecompositionSingle displacementDouble displacement
- 20. Multiple ChoiceP4 + 3 O2 ----> 2 P2O3Synthesis (or combination)DecompositionSingle displacementDouble displacement
- 21. Multiple ChoiceTwo Reactants and One ProductDecompositionCombinationCombustionSingle Replacement
- 22. Multiple ChoiceCxHy +O2 --> H2O + CO2DecompositionDouble replacementCombustionSingle Replacement
- 23. Multiple ChoiceOne element replaces another in a compound.SynthesisCombustionSingle ReplacementDouble Replacement
- 24. Multiple ChoiceOne reactant into several products.DecompositionSynthesisCombustionSingle Replacement
- 25. Multiple ChoiceWhat is the type of reaction shown at the top?CombinationDecompositionSingle ReplacementDouble Replacement
- 26. Multiple ChoiceThis pictures simulates what type of reaction?SynthesisDecompositionSingle ReplacementDouble Replacement
- 27. Multiple Choice
Balance the following:
____ Fe + ____ Cl2 → ____ FeCl3
1,1,21,3,12,2,32,3,2 - 28. Multiple Choice
Balance the following:
____ Al + ____ O2 → ____ Al2O3
2,3,44,3,21,1,22,1,1 - 29. Multiple Choice
Balance the following:
Dicarbon hexahydride and Oxygen react to produce
Carbon dioxide and Dihydrogen monoxide
1,6,2,31,6,3,22,7,4,66,4,7,2 - 30. Multiple ChoiceWhich type of reaction is: C2H4 + 3 O2 → 2 CO2 + 2 H2OSynthesisDecompositionSingle DisplacementCombustion
- Answer choicesTagsAnswer choicesTags