They write a chemical equation.
Yes
Change of shape can not be used to indicate a chemical reaction has happened. Examples of evidence of a chemical reaction are changes in odor or color.
a physical change or a chemical change
a physical change or a chemical change
No, a chemical change. Taste and smell are indicators of chemical composition, so a change in those would indicate a chemical change.
Yes. Research litmus paper.
thunder
state
No. Change in odour is likely to be related to a chemical process.
Because a chemical reaction has different sign's. And heat is one. But if the temperature is dropping then it is not going through a chemical change.
People can
This is a chemical change.