Can someone please check if I have written and balanced the reaction properly?
1.In 1774 Joesph Priestley discovered oxygen by decomposing the oxide of mercury.
2HgO = 2 Hg + O2
2. Slaked lime precipitates magnesium ions from hard water.
Ca(OH)2 + Mg(HCO3)2 = Ca(HCO3)2 + Mg(OH)2
looks good to me.
Thank you!
To check if a chemical reaction is properly written and balanced, you need to follow certain steps. Let's go through each reaction.
1. In 1774, Joseph Priestley discovered oxygen by decomposing the oxide of mercury.
The reaction you provided is: 2HgO = 2 Hg + O2
To check if it is balanced, you need to ensure that the number of each type of atom is the same on both sides of the equation. Here's how to balance this reaction:
The equation currently has:
2 mercury (Hg) atoms on the left side
2 mercury (Hg) atoms on the right side
1 oxygen (O) atom on the left side
1 oxygen (O) atom on the right side
Since the number of atoms is already balanced, this reaction is written and balanced correctly.
2. Slaked lime precipitates magnesium ions from hard water.
The reaction you provided is: Ca(OH)2 + Mg(HCO3)2 = Ca(HCO3)2 + Mg(OH)2
To check if it is balanced, we need to balance the number of each type of atom on both sides. Here's how you can balance this reaction:
The equation currently has:
1 calcium (Ca) atom on the left side
1 calcium (Ca) atom on the right side
2 hydroxide (OH) ions on the left side
2 hydroxide (OH) ions on the right side
2 magnesium (Mg) atoms on the left side
2 magnesium (Mg) atoms on the right side
2 bicarbonate (HCO3) ions on the left side
2 bicarbonate (HCO3) ions on the right side
Since the number of each type of atom and ion is already balanced, this reaction is written and balanced correctly.
So, both of the reactions you provided are written and balanced properly.