What is the balanced chemical equation for "solid calcium hydrogen carbonate reacts with hydrochloric acid solution producing carbon dioxide,water and calcium ions in solution?"
The balanced chemical equation for the reaction between solid calcium hydrogen carbonate (Ca(HCO3)2) and hydrochloric acid (HCl) can be written as:
Ca(HCO3)2 + 2HCl -> 2CO2 + 2H2O + CaCl2
To determine the balanced chemical equation for the reaction described, we need to first identify the chemical formulas for all the reactants and products.
The reactants are:
- Solid calcium hydrogen carbonate, which has the chemical formula Ca(HCO3)2.
- Hydrochloric acid solution, which is composed of hydrogen chloride (HCl) dissolved in water (H2O).
The products are:
- Carbon dioxide gas, represented by the chemical formula CO2.
- Water, represented by the chemical formula H2O.
- Calcium ions in solution, which can be represented as Ca2+.
Now, let's write the unbalanced equation for the reaction:
Ca(HCO3)2 (s) + HCl(aq) -> CO2 (g) + H2O (l) + Ca2+ (aq)
To balance the equation, we must make sure that there is an equal number of atoms of each element on both sides of the equation. Here are the steps to balance the equation:
1. Balance the carbon atoms: There is only one carbon atom on the left side (in the Ca(HCO3)2 compound), and one carbon atom on the right side (in the CO2). The carbon atoms are already balanced.
2. Balance the hydrogen atoms: There are two hydrogen atoms in the Ca(HCO3)2 compound (from the HCO3 part), and two hydrogen atoms in the HCl compound. Thus, the hydrogen atoms are already balanced.
3. Balance the oxygen atoms: There are four oxygen atoms on the left side (from the HCO3 part of Ca(HCO3)2) and two oxygen atoms on the right side (from the CO2). We can balance the oxygen atoms by adding a coefficient of 2 in front of HCl:
Ca(HCO3)2 (s) + 2HCl(aq) -> CO2 (g) + H2O (l) + Ca2+ (aq)
Now, the equation is balanced with respect to the number of atoms on each side.
Final balanced chemical equation:
Ca(HCO3)2 (s) + 2HCl(aq) -> CO2 (g) + H2O (l) + Ca2+ (aq)