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In Chemistry / Middle School | 2014-05-10

Which two of these are chemical reactions? Tick two boxes.

- You dissolve a spoonful of sugar in water.
- Bread goes brown in the toaster.
- You take an ice lolly out of the freezer and it starts to melt.
- Frost forms on the grass on a cold night.
- You strike a match to light a Bunsen burner.

Asked by darwin

Answer (3)

The second one and the fifth one.
Bread goes brown in toaster and lighting a burner.
Reason: - Both the actions involve combustion; which is a chemical change.

Answered by tadvisohil886 | 2024-06-10

Strike a match and a spoon of sugar

Answered by darknessboy | 2024-06-10

The two processes that are chemical reactions are 'Bread goes brown in the toaster' and 'You strike a match to light a Bunsen burner.' These involve changes that create new substances, while the others are physical changes that do not alter chemical identities.
;

Answered by Anonymous | 2024-12-23

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