Question

Расставить коэффициенты Li+O2=Li2O C+CuO=Cu+CO2 HgO=Hg+O2 Fe+Cl2=FeCl3

Answer 1

4Li+O2=Li2O. C+2CuO=2Cu+CO2. 2HgO=2Hg+O2. 2Fe+3Cl2=2FeCl3

Answer 2

Balancing Chemical Equations

To balance the given chemical equations, we need to ensure that the number of atoms of each element is the same on both sides of the equation. Let's balance each equation step by step:

1. Li + O2 = Li2O

To balance this equation, we need to ensure that the number of lithium (Li) and oxygen (O) atoms is the same on both sides. The equation is already balanced as it is, with one lithium atom and two oxygen atoms on each side.

2. C + CuO = Cu + CO2

To balance this equation, we need to ensure that the number of carbon (C), copper (Cu), and oxygen (O) atoms is the same on both sides. The equation is already balanced as it is, with one carbon atom, one copper atom, and two oxygen atoms on each side.

3. HgO = Hg + O2

To balance this equation, we need to ensure that the number of mercury (Hg) and oxygen (O) atoms is the same on both sides. The equation is already balanced as it is, with one mercury atom and one oxygen atom on each side.

4. Fe + Cl2 = FeCl3

To balance this equation, we need to ensure that the number of iron (Fe) and chlorine (Cl) atoms is the same on both sides. The equation is already balanced as it is, with one iron atom and three chlorine atoms on each side.

Therefore, the balanced chemical equations are:

1. Li + O2 = Li2O 2. C + CuO = Cu + CO2 3. HgO = Hg + O2 4. Fe + Cl2 = FeCl3

Please note that the coefficients in front of each compound represent the number of molecules or atoms involved in the reaction.