Question

2 · elements and compounds
station 9 · chemical change
there are 5 signs that indicate that a chemical change (chemical reaction) is taking place. many reactions are accompanied by 2 or more of the signs. list the 5 observations that a chemical change is taking place.
1.
2.
3.
4.
5.

Explanation:

In chemistry, there are specific observable changes that signal a chemical reaction. These are well - known indicators in the field of chemical studies.

Answer:

1. Change in color
2. Formation of a precipitate
3. Evolution of a gas (bubbling)
4. Change in temperature (exothermic or endothermic)
5. Production of light or sound (in some reactions)