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Answer:
-Colour
-Temperature
-Light
-Gas produced (Bubbles)
-Precipitate
-Hard to reverse
Examples: Cooking an egg: This is a chemical reaction for several reasons. As you cook an egg the temperature increases, also the colour of the whites change, and it is very hard to reverse.
Melting a block of ice: This would not be a chemical change because it is rather known as a Physical Change. A physical change includes signs as decrease in size or change in state. In this situation the block of ice is going from a solid, to a liquid.
-Temperature
-Light
-Gas produced (Bubbles)
-Precipitate
-Hard to reverse
Examples: Cooking an egg: This is a chemical reaction for several reasons. As you cook an egg the temperature increases, also the colour of the whites change, and it is very hard to reverse.
Melting a block of ice: This would not be a chemical change because it is rather known as a Physical Change. A physical change includes signs as decrease in size or change in state. In this situation the block of ice is going from a solid, to a liquid.
Contributor:
Habesha
Habesha
First answer by ID2792423522.
Last edit by Nathan Aijem.
Contributor trust: 0
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