How can you say these are chemical changes? Give one reason for your answer? 1-burning of candle 2-milk sours in hot and humid weather 3-decomposition of water into hydrogen and oxygen 4-rusting of iron 5-a frog breathes heavily
Answers
Answered by
5
Explanation:
1) physical change
2) chemical change
3) chemical change
4) chemical change
5) physical change
chemical change:
it is a type of change in which new substances are formed. and during the change it releases gas, light, heat.
Similar questions