Can someone balance this equation? Ca(OH)2 + HNO3 + Ca(NO3)2 + H2O? Please explain. thanks so much.?
- Dr WLv 71 decade agoFavorite Answer
start with this
__ Ca(OH)2 +__ HNO3 → __ Ca(NO3)2 +__ H2O
next pick an atom that occurs in one molecule on the left and one on the right. 1 pick Ca....
put a 1 in front of the molecule containing Ca on the left.
1 Ca(OH)2 +__ HNO3 → __ Ca(NO3)2 +__ H2O
now you have 1 Ca on the left. next make 1 Ca on the right
1 Ca(OH)2 +__ HNO3 → 1 Ca(NO3)2 +__ H2O
next balance NO3.... you have 2 on the right ( because 1 x Ca(NO3)2 = 1 Ca + 2 x NO3). so make 2 NO3 on the left..
1 Ca(OH)2 + 2 HNO3 → 1 Ca(NO3)2 +__ H2O
now your left with 2 OH and 2 H on the left = 4 H + 2 O. next make the H's and O's on the right balance. 2 x H2O = 4 H and 2 O right? so....
1 Ca(OH)2 + 2 HNO3 → 1 Ca(NO3)2 + 2 H2O
and you're done.
- Trevor HLv 71 decade ago
This is a standard acid/base reaction where an acid (HNO3)reacts withe a base Ca(OH)2 to produce a salt (Ca(NO3)2 and water H2O
Ca(OH)2 + 2HNO3 → Ca(NO3)2 + 2H2O
Note that in the equation you must have a → sign. You cannot have a line of + signs.
- 1 decade ago
You wrote it incorrectly... it should be this:
Ca(OH)2 + HNO3 = Ca(NO3)2 + H20
This is all about mass balance... whatever is on the left must be on the right because you can neither create nor destroy matter.
You can see that there are two N on the right side, therefore you need two on the left, which makes this:
Ca(OH)2 + 2HNO3 = Ca(NO3)2 + H20
but your O is out of balance now. There's 8 on the left side and 7 on the right. To correct is this:
Ca(OH)2 + 2HNO3 = Ca(NO3)2 + 2H20
Then just check each element for balance... all balances!Source(s): Me, I'm a chemist!
- Roger SLv 71 decade ago
Ca(OH)2 + 2HNO3 + Ca(NO3)2 + H2O
Understanding how to balance this equation involves knowing what ions are being formed:
Ca(OH)2 -> Ca(+2) + 2OH(-)
HNO3 -> H(+) + NO3(-)
The next clue is that this is an acid/base reaction. HNO3 is a strong acid and Ca(OH)2 is a base. In these reactions, the product is water and salt. The salt being formed is Calcium nitrate, but it will require two molecules of HNO3 to form the salt:
Ca(+2) + 2NO3(-) -> Ca(NO3)2
In the process, 2 molecules of water are formed.
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- 1 decade ago
Your question in wrong, it should be
Ca(OH)2 + HNO3 => Ca(NO3)2 + H2O
In this case just put a 2 before HNO3 to be 2HNO3, and another 2 before H2O, to become 2H20.
you have 1 Ca on each side, 8O's on each side, 4H's on each side, and 2N's on each side.