I'm not sure what they are. I think I know two out of the five. Which is odor and color. What are the other three?
gives off at precipitate
energy (light, heat, fire)
-a gas is produced.
-the temperature changes, or energy, such as the production (exothermic) or loss (endothermic) of heat.
-a substance disappears.
-a solid is formed.
-a colour change occurs.
-a new odour is produced.
-a change of form (for example, burning paper).
-light, heat, or sound is given off.