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In a chemical change, you produce a substance(s) that you did not have before, with a completely different chemical composition. For example, when you combine vinegar and baking soda, a reaction occurs, and when that reaction is completed, you no longer have vinegar or baking soda. You have new substances composed of a rearrangement of the atoms of the stuff you had before. Evidence of a chemical change can include, but is not limited to, the following: color change, smell, temperature change, formation of bubbles, formation of a precipitate.
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∙ 11y ago
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Is grilling of meat a physical change?
No, it's a chemical change because chemical reactions are involved.
Is fireworks a physical change?
No. Fireworks are an example of a chemical change called combustion.
Is a bucket of bleach a chemical change?
No. There is no change involved in a bucket of bleach, so it cannot be a chemical change.
Is ripping your jeans chemical or physical change?
Physical - there are no chemicals involved
Because change the identity of the substances involved they are hard to reverse?
ChemicalBecause CHEMICAL change the identity of the substances involved they are hard to reverse.
Is grilling of meat a physical change?
No, it's a chemical change because chemical reactions are involved.
Is fireworks a physical change?
No. Fireworks are an example of a chemical change called combustion.
Is a bucket of bleach a chemical change?
No. There is no change involved in a bucket of bleach, so it cannot be a chemical change.
What is always involved in physical or chemical change in matter?
Energy is always involved.
Is a plant using Co2 and H20 to form 02 and sugar a chemical or physical change?
A chemical change. If the identity of of the chemicals involved change in identity, it is a chemical change.
Is ripping your jeans chemical or physical change?
Physical - there are no chemicals involved
Is energy involved in every physical and chemical change?
It is true.
Is energy transfer involved in every physical and chemical change?
No
What type of change is involved in rusting of iron name the product formed?
Chemical change
Because change the identity of the substances involved they are hard to reverse?
ChemicalBecause CHEMICAL change the identity of the substances involved they are hard to reverse.
Is salt disolving in chemical change?
Dissolved sodium chloride may be involved in chemical reactions.
Is copper turning green when expose to environment a chemical change and why?
It is a chemical change because chemical reactions are involved; copper become hydrated copper carbonate.
