Question

question select all the correct answers. which observations show that a change in state of matter has occurred? wood burns, producing gas and an ashy residue. overnight, dew forms on the grass. an alkali indicator changes color when added to a cleaner. vinegar has a strong smell.

Explanation:

• Wood burning is a chemical change, not just a change in state.
• Dew - formation is the condensation of water vapor (gas) into liquid water, a change in state.
• Indicator color - change is a chemical reaction, not a state - change.
• The smell of vinegar is a property, not a state - change.

Answer:

Overnight, dew forms on the grass.