1. color is what type of property? a) physical b) chemical 2. reactivity is what type of property? a)…

1. color is what type of property? a) physical b) chemical 2. reactivity is what type of property? a) chemical b) physical 3. what is a sign of a physical change? a) stretching b) color changing c) bubbles forming d) producing heat

1. color is what type of property? a) physical b) chemical 2. reactivity is what type of property? a) chemical b) physical 3. what is a sign of a physical change? a) stretching b) color changing c) bubbles forming d) producing heat

Answer

Brief Explanations:

  1. Color can be observed without changing the substance's chemical composition, so it is a physical property.
  2. Reactivity involves how a substance interacts chemically with other substances, so it is a chemical property.
  3. Stretching is a physical change as it only alters the shape of a substance without changing its chemical identity. Color - changing, bubbles - forming, and producing heat are often signs of chemical changes.

Answer:

  1. a) Physical
  2. a) Chemical
  3. a) Stretching