57.) For the reaction of carbon with carbon dioxide to make carbon monoxide, the

Question

57.) For the reaction of carbon with carbon dioxide to make carbon monoxide, the reaction is as follows.

C(s) + CO2(g) <---> 2CO (g)

Adding additional C(s) to the reaction container will cause _______ to occur

A.) the formation of more CO

B.) the formation of more CO2

C) a decrease in the amount of CO

D) B & C

E) no change in the amounts of CO and CO2

60.) What is the radiactive particle released in the following nuclear equation?

159 W --> 155 Hf + ?

74              72

A.) alpha particle

B.) beta particle

C.) gamma ray

D.) proton

E.) neurtron

12.) A sample of chlorine has two naturally occuring isotopes. The isotope Cl-35 (mass 35.0 amu) makes up 75.8% of the sample, and the isotope Cl-37 (mass = 37.0 amu) makes up 24.3% of the sample. What is the average atomic mass for chlorine?

A.) 36.0 amu

B.) 35 amu

C.) 36.6 amu

D.) 35.5 amu

E.) 35.521 amu

Explanation / Answer

For the reaction of carbon with carbon dioxide to make carbon monoxide, one set of conditions produced a Kc = 1.2

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