Which example provides evidence of a chemical change? 1-Wood releases ash and smoke when burned.-2-Boiling water bubbles when being heated.-3-Rock particles separate when soil is being sifted.
Wood releases ash and smoke when burned.
What is a chemical reaction? 1-a change in matter when the molecules rearrange to make new molecules //2-a change in matter when matter changes its form or appearance
a change in matter when the molecules rearrange to make new molecules
This change is a --------------- ( physical change- Chemical change )
physical change
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