Question

an element M form an oxide m2o3 what will be the formula of its chloride​

Answer 1

Answer:

Well, Oxygen has a charge of 2-. If you have 3 atoms with a charge of 2-, you have a charge of 6-, 3 multiplied by 2-. That means that the 2 atoms of M together have a charge of 6+ to cancel out the 6-, meaning M has a charge of 3+, 6+ / 2.

Phosphate, or PO4, has a charge of 3-. This will directly cancel out the 3+ of M, meaning a 1:1 ratio.

The answer is MPO4.

Answer 2

Answer:

mCl3 because m has 3 atoms and oxygen has 2 atoms