Question

Which of the following is an indicator of a chemical reaction? CA. Changing states of matter (solid to liquid) CB. Two different compounds mixing and remaining separate CC. Increasing in temperature D. Decreasing in size

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Answer 1

All except 2nd one

Step-by-step explanation:

• States of matter changes in chemical reaction
• In Exothermic reactions temperature increases
• In first order reactions or radioactive reactions size decreases because of decay

Answer 2

CB. Two different compounds mixing and remaining separate is not correct!