1. Balance each of the following equations: A. __1_ Cu(s) + __4_ HNO3(aq) → _1__ Cu(NO3)2(aq) + _2__ NO2(g) + _2__ H2O(l) B. _1__ Cu(NO3)2(aq) + __2_ NaOH(aq) → _1__ Cu(OH)2(s) + _2__ NaNO3(aq) C. _1__ Cu(OH)2(s) → __1_ CuO(s) + __1_ H2O(l) D. _1__ CuO(s) + _1__ H2SO4(aq) → _1__ CuSO4(aq) + __1_ H2O(l) E. __1_ CuSO4(aq) + __1_ Zn(s) → _1__ Cu(s) + _1__ ZnSO4(aq) 2. If you measured out 100.0 mg of copper wire, calculate the exact amount of 6 M NaOH that you would need in Part B of the experiment to complete the transformation of copper(II) ion to copper(II) hydroxide. (Hint: use your balanced equations from Question 1.) 3. If you measured out 100.0 mg of copper wire, calculate the exact amount of zinc that you would need in Part E of the experiment to complete the copper cycle. (Hint: use your balanced equations from Question 1.)
1. Balance each of the following equations:
A. __1_ Cu(s) + __4_ HNO3(aq) → _1__ Cu(NO3)2(aq) + _2__ NO2(g) + _2__ H2O(l)
B. _1__ Cu(NO3)2(aq) + __2_ NaOH(aq) → _1__ Cu(OH)2(s) + _2__ NaNO3(aq)
C. _1__ Cu(OH)2(s) → __1_ CuO(s) + __1_ H2O(l)
D. _1__ CuO(s) + _1__ H2SO4(aq) → _1__ CuSO4(aq) + __1_ H2O(l)
E. __1_ CuSO4(aq) + __1_ Zn(s) → _1__ Cu(s) + _1__ ZnSO4(aq)
2. If you measured out 100.0 mg of copper wire, calculate the exact amount of 6 M NaOH that you would need in Part B of the experiment to complete the transformation of copper(II) ion to copper(II) hydroxide. (Hint: use your balanced equations from Question 1.)
3. If you measured out 100.0 mg of copper wire, calculate the exact amount of zinc that you would need in Part E of the experiment to complete the copper cycle. (Hint: use your balanced equations from Question 1.)
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