Write a formula for the ionic compound that forms between each of the following pairs of elements.
1. aluminum and oxygen Express your answer as a chemical formula.
AlO and Al2O3 and Al2O3 the 2 was the bottom right cornor
and I got this message
Use subscripts to represent the number of each type of atom or ion in a molecule.
2. potassium and oxygen Express your answer as a chemical formula.
K2O2 and KO
and I got this for both answers.
Use subscripts to represent the number of each type of atom or ion in a molecule.
I finaly got #2 it is K2O
and I finaly got #1 it is Al2O3
Right. Al2O3 and K2O are correct.
To determine the formula for an ionic compound, we need to know the charges of the ions involved.
1. aluminum and oxygen:
The charge of aluminum (Al) is typically +3, while the charge for oxygen (O) is -2. To balance the charges, we need three oxygen ions for every two aluminum ions. Therefore, the formula for the compound formed between aluminum and oxygen is Al2O3.
2. potassium and oxygen:
The charge of potassium (K) is typically +1, and the charge for oxygen (O) is -2. To balance the charges, we need two potassium ions for every one oxygen ion. Therefore, the formula for the compound formed between potassium and oxygen is KO.
Remember to use subscripts to indicate the number of each type of atom or ion in a molecule. The numbers should be placed as subscripts next to the respective element symbol.