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The chemical formula for naphthalene is [tex]C _{10} H _8[/tex]. It's used to make mothballs and pesticides. In [tex]4 C _{10} H _8[/tex], the coefficient is [tex]$\square$[/tex], the subscript of carbon is [tex]$\square$[/tex], and the subscript of hydrogen is [tex]$\square$[/tex].



Answer :

To find the correct values for each part of the chemical formula [tex]\( 4 C_{10} H_{8} \)[/tex]:

1. The coefficient: This is the number that appears in front of the chemical formula, indicating how many molecules of the compound are present. In this case, the coefficient is 4.

2. The subscript of carbon: The subscript for an element in a chemical formula tells us the number of atoms of that element within one molecule. For the carbon atoms in the naphthalene molecule, the subscript is 10.

3. The subscript of hydrogen: Similarly, the subscript for hydrogen in the naphthalene molecule tells us the number of hydrogen atoms within one molecule. For hydrogen, the subscript is 8.

Therefore, the correct selections are:
- The coefficient is 4
- The subscript of carbon is 10
- The subscript of hydrogen is 8