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- 1. Multiple ChoiceWhat is a coefficient?The small number on the right of the chemical symbol.The large number to the left of a formula.
- 2. Multiple ChoiceWhich side of a chemical equation is the product side?Left (before the arrow)Right (after the arrow)
- 3. Multiple ChoiceWhich side of a chemical equation is the reactant side?Left (before the arrow)Right (after the arrow)
- 4. Multiple ChoiceWhich problem is balanced?PbO2 + 2H2SO2 + H20 --> H2SO42Na + 2H2O --> 2NaOH + H2
- 5. Multiple ChoiceIs the equation balanced?: 2H2O + O2 --> 4MgO + 3FeYesNo
- 6. Multiple ChoiceWhat is the little number after an element in a chemical equation called.
Example: H2CoefficientSubscriptAtomEquation - 7. Multiple ChoiceWhat is the arrow in a chemical equation...
H2 + O --> H2OReactantsProductsProducesChemical Equation - 8. Multiple ChoiceBalance this equation
_Zn+_HCl-->_ZnCl2 +_H21,1,2,11,1,1,21,2,1,12,1,1,1 - 9. Multiple ChoiceBalance this equation.
_Mg + _Cl2 --> _MgCl21, 2,1already balanced2,1,11,1,2 - 10. 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.
- 11. Multiple ChoiceIs this balanced?...
Fe + S --> FeSYES!NO! - 12. Multiple ChoiceKNO3 --> KNO2 + O2
What coefficients are needed to balance the reaction?2, 2, 12, 3, 21, 2, 21, 3, 1 - 13. Multiple ChoiceBalance this equation-
__P4 + __O2 --> __P2O3it is already balanced2, 1, 31, 2, 31, 3, 2 - 14. Multiple ChoiceBalance this equation.
_Mg + _Cl2 --> _MgCl21, 2,1already balanced2,1,11,1,2 - 15. Multiple ChoiceBalance this equation.
_CH4 + _O2 --> _CO2 + _H2O1,2,1,12,1,2,11,2,1,20,2,0,2 - Answer choicesTagsAnswer choicesTags