when two substances are mixed together, a color change is observed. does this mean that a chemical reaction…
when two substances are mixed together, a color change is observed. does this mean that a chemical reaction has definitely occurred?\no yes because any change indicates a chemical reaction.\no no because some physical changes produce color changes.\no no because color changes are not indicators of chemical reactions.\no yes because color changes occur only when new compounds are formed.
Answer
Brief Explanations:
A color change can be due to physical changes like mixing colored substances without chemical bonds breaking or forming new compounds. For example, mixing food - coloring in water is a physical change with color change. So, a color change alone doesn't always mean a chemical reaction has occurred.
Answer:
No because some physical changes produce color changes.