which of the following is the correctly balanced chemical equation for the reaction of ca(oh)₂ and…
which of the following is the correctly balanced chemical equation for the reaction of ca(oh)₂ and hno₃?\nca(oh)₂ + hno₃ → ca²⁺ + no₃⁻\nca(oh)₂ + 2hno₃ → 2h₂o + 2no₃⁻\nca(oh)₂ + 2hno₃ → h₂o + cano₃\nca(oh)₂ + 2hno₃ → 2h₂o + ca(no₃)₂
Answer
Explanation:
Step1: Analyze reactants and products
The reactants are calcium hydroxide ($Ca(OH)_2$) and nitric acid ($HNO_3$). The reaction is an acid - base neutralization reaction. The products are water ($H_2O$) and calcium nitrate ($Ca(NO_3)_2$).
Step2: Balance the equation
On the left - hand side, we have 1 calcium atom in $Ca(OH)_2$. In $Ca(NO_3)_2$ on the right - hand side, we also need 1 calcium atom. For the nitrate ions ($NO_3^-$), there are 2 nitrate ions in $Ca(NO_3)_2$. Since each $HNO_3$ provides 1 nitrate ion, we need 2 moles of $HNO_3$. For the hydrogen and oxygen atoms, when we have 2 moles of $HNO_3$ and 1 mole of $Ca(OH)_2$, we get 2 moles of $H_2O$. The balanced chemical equation is $Ca(OH)_2 + 2HNO_3\rightarrow2H_2O+Ca(NO_3)_2$.
Answer:
$Ca(OH)_2 + 2HNO_3\rightarrow2H_2O+Ca(NO_3)_2$ (the fourth option)