Any of the basic mechanical devices for applying a force, such as an inclined plane, wedge, or lever.
the time required for the activity of a substance taken into the body to lose one half its initial effectiveness. Informal. a brief period during which something flourishes before dying out.
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Answer is: B because it has a lower activation energy.
For all chemical reaction some energy is required and that energy is called activation energy (energy that needs to be absorbed for a chemical reaction to start), activation energy for reaction B is lower that for reaction A.
Catalysis is the increase in the rate of a chemical reaction due to the participation of an additional substance called a catalyst.
Chemical reactions occur faster with a catalyst because they require less activation energy.
Answer:
I think it would be A but it might be B please tell if wrong
115 grams total
15/115= 13%
109/115= 87%
.13x 16.4= .277
.87x 86.5= 75.255
75.255+.277= 75.532 deg C
or 75.5 as 3 significant digits