balace equation for the follwing
1. Li + O2
2. K + O2
3. Na + O2
4. RbCl + Na
To balance the given chemical equations, we need to make sure that the number of atoms of each element is the same on both sides of the equation.
1. Li + O2:
To balance this equation, we start by counting the number of atoms on each side:
On the left side, we have 1 Li atom and 2 O atoms.
On the right side, we have 1 Li atom and 1 O atom.
To balance the oxygen atoms, we need to put a coefficient in front of Li2O:
2Li + O2 → 2Li2O
2. K + O2:
On the left side, we have 1 K atom and 2 O atoms.
On the right side, we have 2 K atoms and 1 O atom.
To balance the oxygen atoms, we need to put a coefficient in front of K2O:
4K + O2 → 2K2O
3. Na + O2:
On the left side, we have 2 Na atoms and 2 O atoms.
On the right side, we have 1 Na atom and 1 O atom.
To balance the sodium atoms, we need to put a coefficient in front of Na2O:
4Na + O2 → 2Na2O
4. RbCl + Na:
On the left side, we have 1 Rb atom, 1 Cl atom, and 1 Na atom.
On the right side, we have 1 Rb atom, and 1 Na atom.
To balance the chlorine atoms, we need to put a coefficient in front of RbCl:
2RbCl + 2Na → 2Rb + 2Na
Now, all the given chemical equations are balanced.