Answer:
ask them. it doesn't really hurt to.
Answer: C
Explanation: the light energy is from the sun which other than light energy, is equal to solar energy, confirming that the answer is C
Li2O + H2O → 2LiOH
This is the answer
3rd blank write 2
Double replacement.
Ba(OH)2 + H2SO4 ====> 2H2O + BaSO4