Questions: Do the following statements describe a chemical or physical change? The helium gas inside a balloon tends to leak out after a few hours. chemical physical neither

Solution Steps

To determine whether the statement describes a chemical or physical change, we need to understand the characteristics of each type of change:

• Chemical Change: Involves a change in the chemical composition of a substance. New substances are formed, and the process is usually irreversible without another chemical reaction.
• Physical Change: Involves a change in the physical properties of a substance without altering its chemical composition. Examples include changes in state, shape, or size.

The statement is: "The helium gas inside a balloon tends to leak out after a few hours."

• Helium Gas Leaking: This process involves the movement of helium atoms from inside the balloon to the outside environment. The chemical composition of helium remains unchanged during this process.

Since the helium gas retains its chemical identity and no new substances are formed, the process of helium leaking out of a balloon is a physical change.

Final Answer