Answer:
b. spontaneous.
c. spontaneous.
Explanation:
Using the net standard potential, it is possible to determine if the reaction is spontaneous or not. If the standard potential of the reaction is positive, the reaction is spontaneous, whereas if the standard potential of the reaction is negative, the reaction is non-spontaneous.
a. Ni(s)+Zn2+(aq)→Ni2+(aq)+Zn(s) E° = - 0.53 v
b. Pb(s)+Mn2+(aq)→Pb2+(aq)+Mn(s) E° = + 0.10 v
c. Ni(s)+Pb2+(aq)→Ni2+(aq)+Pb(s) E° = + 2.46 v
d. Cr(s)+3Ag+(aq)→Cr3+(aq)+3Ag(s) E° = - 1.05 v
To answer this question, you need to know how to convert milliliters into liter then into a gallon. In this question, you are given the gasoline density (0.737g/ml) and the volume (12.8gallon). The information is enough to determine the gas weight. The calculation would be:
Gas weight= density * volume
Gas weight= 0.737g/ml * 12.8 gal * 3.78L/gal * 1000ml/L= 35659.008 grams
Answer:
c. rocks break down due to different environmental forces.
Answer:
B people control how plants or animals reproduce to get desired traits
Explanation:
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