Question

use the following reaction to answer the next questions.
h₂o₂(aq) → h₂o(l) + o₂(g)

1. in the reaction above, what does the (l) stand for next to h₂o?
2. in the reaction above, what does the (g) stand for next to o₂?
3. in the reaction above, what does the (aq) stand for next to h₂o₂?
4. knowing this information above, what would an (s) symbol stand for?
5. in the reaction above, list the reactant(s): ______
6. in the reaction above, list the product(s): ______

Explanation:

39)

Step1: Recall state symbols

In chemical reactions, state symbols indicate the physical state of a substance. The symbol \((l)\) is a standard state symbol.

Step2: Define \((l)\)

The state symbol \((l)\) stands for "liquid". So for \(\ce{H2O(l)}\), the \((l)\) means water is in the liquid state.

Step1: Recall state symbols

State symbols in chemistry represent the physical state of substances. The symbol \((g)\) (wait, no, the question is about \((g)\)? Wait, no, the reaction is \(\ce{H2O2(aq) -> H2O(l) + O2(g)}\)? Wait, the original reaction: \(\ce{H2O2(aq) -> H2O(l) + O2(g)}\)? Wait, the question 40 is about \((g)\) next to \(\ce{H2O}\)? Wait, no, looking back: the reaction is \(\ce{H2O2(aq) -> H2O(l) + O2(g)}\)? Wait, the user's image: "In the reaction above, what does the (g) stand for next to H₂O? Wait, no, the original: "In the reaction above, what does the (g) stand for next to H₂O? Wait, no, the reaction is \(\ce{H2O2(aq) -> H2O(l) + O2(g)}\). Wait, question 40: "In the reaction above, what does the (g) stand for next to H₂O?" Wait, no, maybe a typo, but assuming it's \(\ce{O2(g)}\), but the question is about \((g)\) next to \(\ce{H2O}\)? No, maybe the reaction is \(\ce{H2O2(aq) -> H2O(g) + O2(g)}\)? Wait, no, the user's image: "In the reaction above, what does the (g) stand for next to H₂O?" Wait, perhaps the reaction is \(\ce{H2O2(aq) -> H2O(g) + O2(g)}\). Anyway, the state symbol \((g)\) stands for gas. Wait, no, the question 40: "In the reaction above, what does the (g) stand for next to H₂O?" Wait, maybe the reaction is \(\ce{H2O2(aq) -> H2O(g) + O2(g)}\). So the \((g)\) next to \(\ce{H2O}\) would mean water is in the gaseous state (steam). But let's correct: state symbol \((g)\) is "gas".

Step2: Define \((g)\)

The state symbol \((g)\) stands for "gas". So if \(\ce{H2O}\) has \((g)\), it means water vapor (gaseous water).

Step1: Recall state symbols

In chemical reactions, the state symbol \((aq)\) is a common one. It stands for "aqueous", which means the substance is dissolved in water (in an aqueous solution).

Step2: Define \((aq)\)

For \(\ce{H2O2(aq)}\), the \((aq)\) means hydrogen peroxide is dissolved in water, i.e., in an aqueous solution.

Answer:

liquid

40)