Question

Explained the usefulness of chemical changes in everyday life .​

Answer 1

Answer:

Key Takeaways: Chemical Reactions in Everyday Life

Look for signs of a reaction. Chemical reactions often involve color changes, temperature changes, gas production, or precipitant formation. Simple examples of everyday reactions include digestion, combustion, and cooking.

Answer 2

Change in temperature, gas production, stain on steel or iron things, burning gas, digestion, coocking, etc.