Evidence of chemical reaction

All the information I was given is in the picture please look at them thanks and make your work is not copied off of google

A chemical reaction is the process of rearranging the atoms of one or more substances to form different substances: it is a chemical change. While some chemical reactions may be hard to detect, others provide physical evidence.

 

Answer the questions below or on a separate sheet of paper, if necessary.

 

List at least four ways that you can detect if a chemical reaction has taken place.

 

Give at least four examples of chemical reactions and how you can detect them from your everyday life.

 

 

Finally, chemical reactions are represented with many symbols. Why do you think symbols are used in chemistry? Can you think of other areas where symbols are helpful?

I have to do it so I could start doing my tests again but must be my own work not copied off google could you try doing it or check if the person who did it was it his own word the post called (8: please make sure your work is correct and Not coped off google I provided all the info thank you)

8: please make sure your work is correct and Not coped off google I provided all the info thank you

Hello everyone I have this homework need it done 24 hours it’s 250 words shown in the picture including all the information you need it’s all in the picture you must write 250 words of your own not copied off of google please thank you so much

Hello everyone I need this done asap or as soon as possible please make sure it’s your own words and must be 250 word not copied off of google please don’t send links just type it in thank you