Answer:
We can't see the options so we don't know what we can put
Explanation:
Answer: A
1.68 N
F = ma = 0.024(70.0) = 1.68 N
The answer should be I and III
A
14=pH + pOH
pOH= 14 - 2
pOH= 12
pOH= -log[OH]
[OH]= 10^-12
=1×10^-12
