Question

use the periodic table to identify the types of atoms and quantities of each in the following chemical formula
h₂so₄

barium - 1
sodium - 2
oxygen - 4

barium - 2
sodium - 1
oxygen - 4

hydrogen - 2
sulfur - 1
oxygen - 4

hydrogen - 1
sulfur - 2
oxygen - 4

Explanation:

To determine the atoms and their quantities in the chemical formula $\ce{H_2SO_4}$, we analyze the subscripts:

• The symbol $\ce{H}$ (hydrogen) has a subscript of 2, so there are 2 hydrogen atoms.
• The symbol $\ce{S}$ (sulfur) has no subscript, which means there is 1 sulfur atom (by convention, a subscript of 1 is implied when not written).
• The symbol $\ce{O}$ (oxygen) has a subscript of 4, so there are 4 oxygen atoms.

Now we check the options:

• The first option mentions barium and sodium, which are not in $\ce{H_2SO_4}$, so it's incorrect.
• The second option mentions barium and sodium, which are not in $\ce{H_2SO_4}$, so it's incorrect.
• The third option has hydrogen - 2, sulfur - 1, oxygen - 4, which matches our analysis.
• The fourth option has incorrect quantities for hydrogen and sulfur.

Answer:

hydrogen - 2, sulfur - 1, oxygen - 4 (the third option)