Question

what is the chemical formula for dinitrogen tetroxide?
$\circ$ $\ce{n_{4}o_{2}}$
$\circ$ $\ce{o_{4}n_{2}}$
$\circ$ $\ce{n_{2}o_{4}}$
$\circ$ $\ce{o_{2}n_{4}}$
$\circ$ $\ce{no_{2}}$

Explanation:

To determine the chemical formula for dinitrogen tetroxide, we analyze the prefixes: "di-" means 2 (for nitrogen, N) and "tetra-" means 4 (for oxygen, O). The formula is written with the element symbol followed by its subscript based on the prefix. So nitrogen (N) has a subscript of 2, and oxygen (O) has a subscript of 4, giving \( \text{N}_2\text{O}_4 \).

Answer:

C. \( \text{N}_2\text{O}_4 \) (assuming the third option is labeled C, with the formula \( \text{N}_2\text{O}_4 \))