Write so the charges are equal

Li+ and OH1-

Ca2+ and O2-

Al3+ and PO43-

Na1+ and S2-

Zn2+ and Cl1-

Al3+ and 02-

shouldn't be a problem. Just find the Least Common Multiple. For example

LCM(3,2) = 6, so Al2O3

I'm sorry, I don't really understand. Can you explain more? Here's the problem again

Write so the charges are equal

Li+ and OH1-

Ca2+ and O2-

Al3+ and PO43-

Na1+ and S2-

Zn2+ and Cl1-

Al3+ and 02-

in my example, Al3+ has a charge of +3

O2- has a charge of -2
So, you need to have as many + charges as you have - charges
Try various combinations
AlO: +3-2 = +1
Al2O: +3*2 - 2 = 6-2 = 4
AlO2: +3-2*2 = 3-4 = -1
Al2O3: +3(2)-2(3) = 6-6 = 0 <---

read up on finding the LCM of two numbers.
google is your friend

To determine if the charges of two ions are equal, we need to examine their oxidation states or charges.

1. Li+ and OH1-:
The charge of Li+ is +1, indicating that it has lost one electron, leaving it with a positive charge. The charge of OH1- is -1, indicating that it has gained one electron, resulting in a negative charge. These charges are not equal.

2. Ca2+ and O2-:
The charge of Ca2+ is +2, as it has lost two electrons, leaving it with a positive charge. The charge of O2- is -2, indicating it has gained two electrons, resulting in a negative charge. These charges are not equal.

3. Al3+ and PO43-:
The charge of Al3+ is +3, indicating that it has lost three electrons, giving it a positive charge. The charge of PO43- is -3, indicating that it has gained three electrons, resulting in a negative charge. These charges are not equal.

4. Na1+ and S2-:
The charge of Na1+ is +1, as it has lost one electron, leaving it with a positive charge. The charge of S2- is -2, as it has gained two electrons, resulting in a negative charge. These charges are not equal.

5. Zn2+ and Cl1-:
The charge of Zn2+ is +2, as it has lost two electrons, giving it a positive charge. The charge of Cl1- is -1, as it has gained one electron, resulting in a negative charge. These charges are not equal.

6. Al3+ and O2-:
The charge of Al3+ is +3, as it has lost three electrons, leaving it with a positive charge. The charge of O2- is -2, indicating that it has gained two electrons, resulting in a negative charge. These charges are not equal.

In summary, for each pair of ions, Li+ and OH1-, Ca2+ and O2-, Al3+ and PO43-, Na1+ and S2-, Zn2+ and Cl1-, Al3+ and O2-, the charges are not equal.