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How can you tell if something produced a chemical change?
change in colour, odour, sounds produced, irreversible etc.
Are fireworks an example of a chemical or physical change?
chemical
Is crumpling a piece of paper a chemical or physical change?
physical
Is colouring a piece of paper an example of a chemical or physical change?
physical
Is cooking an egg an example of a chemical or physical change?
chemical
Is mixing baking soda and grape juice a chemical or physical reaction?
chemical
Is mixing baking soda and vinegar an example of a chemical or physical reaction?
chemical
Is melting ice an example of a chemical or physical reaction?
Physical
Is a rotting banana an example of a chemical or physical change?
chemical
What is a chemical reaction?
A chemical reaction is when you are changing the appearance of something and also the object itself. This is not a reversible reaction.
What is a physical reaction?
A physical reaction is when you are changing the appearance of something but not the object itself. This is a reversible reaction.
Can you give an example of a physical reaction
Answers will vary
Can you give an example of a chemical reaction?
Answers will vary
Is baking a chemical or physical reaction?
Chemical
Is an acid-base reaction a chemical or physical reaction?
Chemical
Is ripping a piece of paper a chemical or physical reaction?
Physical
Is cutting a banana a chemical or physical reaction?
Physical
Is digesting food a chemical or physical reaction?
Chemical
Is starting a fire a chemical or physical reaction?
Chemical
Is cutting your hair a physical or chemical reaction?
Physical