Answer:
I am not sure, but I think the answer is 150units
Explanation:
cause area of a trapezoid is A=1/2(a+b)h
single replacment
Carbon Tetrachloride
1 Carbon atom, 4 chlorine atoms (hence "tetra" prefix)
basic
pH 7: neutral
12>7
so it is basic
(if <7 than acidic)
The answer is B
