The number of atoms in one mole is same in both which is 6 x 10^23 ^23 means power 23
1 2 2 1 is the answer so u are correct
There is a couple different ways to determine if a bond is ionic orcovalent. By definition, an ionicbond is between a metal and a nonmetal, and a covalent bond is between 2 nonmetals. So you usually just look at the periodic table and determine whether your compound is made of a metal/nonmetal or is just 2 nonmetals.
