Answer:
7.1
Explanation:
equation to calculate pH is

Answer:
Good question i really dont know sorry
Explanation:
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Answer: B) It presents the correct sequence of events in Earth’s history.
Explanation: edge 2021
Answer:

Explanation:
= First mass of water = 12 oz
= Second mass of water = 20 oz
= Temperature difference of the solution with respect to the first mass of water =
= Temperature difference of the solution with respect to the second mass of water = 
c = Specific heat of water
As heat gain and loss in the system is equal we have

The final temperature of the solution is
.