Which of the following reactions had the greatest percent yield? a. Theoretical yield 52.3 g; actual yield 50.7g
b. Theoretical yield 17.1 g; actual yield 15.7g
c. Theoretical yield 38.8 g; actual yield 36.2 g
d. Theoretical yield 24.6 g; actual yield 22.5 g

Option A

Explanation:

As we know  

Percent yield is the ratio of actual yield/theoretical yield

a) Percent yield  - Theoretical yield 52.3 g; actual yield 50.7g = 0.97 = 97%

b) Percent Yield - Theoretical yield 17.1 g; actual yield 15.7g = 92%

c) Percent Yield - Theoretical yield 38.8 g; actual yield 36.2 g = 93%

d) Percent Yield - Theoretical yield 24.6 g; actual yield 22.5 g = 91%

Hence option A is correct

3 hours because it is a decent distance.

it's c. elements are placed in rows based on how may valencies electrons have.