Question

1. write the chemical formula for a compound that is made of one atom of carbon (c) and four atoms of hydrogen (h). 4. write the chemical formula for a compound that has two atoms of nitrogen and four atoms of oxygen.

Explanation:

Step1: Write formula for carbon - hydrogen compound

For a compound with one carbon atom (C) and four hydrogen atoms (H), the chemical formula follows the convention of writing the symbol of the central or more electropositive element first, followed by the other element with the number of atoms as a sub - script. So the formula is $CH_4$.

Step2: Write formula for nitrogen - oxygen compound

For a compound with two nitrogen atoms (N) and four oxygen atoms (O), using the same convention, the formula is $N_2O_4$.

Answer:

1. $CH_4$
2. $N_2O_4$