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- 1. Multiple ChoiceIdentify and balance the following equation and give the coefficients:
C2H4 + O2 → CO2 + H2Ocombustion
1, 3, 2, 2combustion
1, 2, 2, 1single replacement
1, 3, 2, 2single replacement
1, 2, 2, 1 - 2. Multiple ChoiceBalance the equation
?As(OH)3(s)+?H2SO4(aq) → ?As2(SO4)3(aq)+?H2O(l)
using the smallest possible integers. The coefficients are2; 3; 1; 63; 2; 1; 62; 3; 2; 32; 3; 2; 12 - 3. Multiple ChoiceBalance the equation
C2H6 + O2 → CO2 + H2O
using the smallest possible integers. The sum of the coefficients is109419 - 4. Multiple Choice
Choose the proper whole-number coefficients for each substance to yield a balanced equation.1, 1, 22, 1, 12, 1, 21, 2, 1 - 5. Multiple ChoiceThe reaction of calcium metal with water leads to the evolution of hydrogen gas and the formation of calcium hydroxide.What is the coefficient of water in the balanced chemical equation for the reaction?(Balance the equation with the smallest possible whole number coefficients.)2789
- 6. Multiple ChoiceWrite and balance the equation that describes the combustion of octane (C8H18), a component typical of the hydrocarbons in gasoline.What is the coefficient of water vapor in the balanced equation for the reaction? (Balance the equation with the smallest possible whole number coefficients.)2251618
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