Question

Tell the number of atoms of each element in these compounds. 1 point per blank N2O3 ___ atoms Nitrogen ____ atoms Oxygen CaCO3 ____ atoms Calcium ____ atoms Carbon ____ atoms Oxygen

Answer 1

Answer : In $N_2O_3$, there are 2 nitrogen atoms and 3 oxygen atoms.

In $CaCO_3$, there are 1 Calcium atom and 1 carbon atom and 3 oxygen atom.

Explanation :

Compound is formed from a combination of two or more different chemical elements.

In the given compound $N_2O_3$, 2 nitrogen molecule are combined with the 3 oxygen molecule.

In $CaCO_3$, 1 calcium molecule, 1 carbon molecule and 3 oxygen molecules are combined.