<span>Which of the following is NOT true about "yield"? a. The value of the actual yield must be given in order for the percent yield to be calculated. b. The percent yield is the ratio of the actual yield to the theoretical yield. c. The actual yield may be different from the theoretical yield because reactions do not always go to completion. d. The actual yield may be different from the theoretical yield because insufficient limiting reagent was used.
The correct answer is:
</span><span> d. The actual yield may be different from the theoretical yield because insufficient limiting reagent was used.</span>
Answer: Double decomposition
Explanation:
I think the correct answer from the choices listed above is the second option. If a copper atom loses two electrons, the name of the copper ion is copper (II) ion . Also it is called cupric acid. However, the latter <span>is an old term and is not recommended. Hope this answers the question.</span>
Answer:
The astronaut will weigh 204.5N on the Moon
Explanation:
Weight, w = m*g
where;
m is the mass of the astronaut in kg
g is acceleration due to gravity ( g = 9.8 m/s² on Earth and 1.67 m/s² on the moon)
Given w = 1200N
m = w/g
m = 1200/9.8
m = 122.4489 kg
Thus, mass of the astronaut is 122.4489kg
weight of the astronaut on the moon = 122.4489*1.67 = 204.5N
Therefore, the astronaut will weigh 204.5N on the Moon
