Questions: Explosions! Which part of the explosion event is NOT considered a chemical change? Click the VIEW THEORY button to get guidance with the question. a) Carbon dioxide expands b) Water vapor is produced c) Ethanol reacts with oxygen d) Ethanol burns

Explosions! Which part of the explosion event is NOT considered a chemical change? Click the VIEW THEORY button to get guidance with the question.
a) Carbon dioxide expands
b) Water vapor is produced
c) Ethanol reacts with oxygen
d) Ethanol burns

Transcript text: Explosions! Which part of the explosion event is NOT considered a chemical change? Click the VIEW THEORY button to get guidance with the question. a) Carbon dioxide expands b) Water vapor is produced c) Ethanol reacts with oxygen d) Ethanol burns

Solution

Solution Steps

Step 1: Understanding Chemical Changes

A chemical change involves a process where substances are transformed into different substances with new chemical properties. This typically involves breaking and forming chemical bonds.

Step 2: Analyzing Each Option

Option a: Carbon dioxide expands
Expansion of a gas is a physical change, not a chemical change, because it involves a change in the state or volume of the substance without altering its chemical composition.
Option b: Water vapor is produced
The production of water vapor from a chemical reaction, such as combustion, is a chemical change because new substances are formed.
Option c: Ethanol reacts with oxygen
This is a chemical change because ethanol and oxygen react to form new substances, such as carbon dioxide and water.
Option d: Ethanol burns
Burning (combustion) is a chemical change as it involves a reaction with oxygen to produce new substances.