please god all i need is to pass this ******* class?

0 ⤊

please god all i need is to pass this ******* class?

balance and complete:
__CaO + __H2O ---->
__CO2 + __H2O ---->
__K2O + __H2O ---->
i dont get this **** and im outta this class in 5 days please have mercy lool

2007-05-20 06:33:10 · 2 answers · asked by stephy 1 in Science & Mathematics ➔ Chemistry

2 answers

CaO + H2O = Ca(OH)2
CO2 + H2O = H2CO3
K2O + H2O = 2 KOH

2007-05-20 07:41:59 · answer #1 · answered by Chris 5 · 0⤊ 0⤋

I am not God, but He must have sent me to help.

Remember this: Metallic oxides produce metallic hydroxides when reacting with water.

CaO + H2O --> Ca(OH)2 (Ca is metal)
K2O + H2O --> 2 KOH (K is metal)

Nonmetallic oxides produce and acid when reacting with water.

CO2 + H2O --> H2CO3 (C is nonmetal)

2007-05-20 07:43:49 · answer #2 · answered by physandchemteach 7 · 0⤊ 0⤋