Which of the following is a chemical reaction?
1.Freezing liquid Mercury
2.Filling a bal...
Biology, 19.05.2020 14:07, kylieweeks052704
Which of the following is a chemical reaction?
1.Freezing liquid Mercury
2.Filling a balloon with air
3.Cutting a piece of paper into two pieces
4.Dropping a sliced orange into a vat of Sodium Dydroxide
Answers: 3
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