state whether a physical or a chemical change is involved during-a chemical reaction- giving reasons.
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Answers
Answer:
Key Points
Physical changes only change the appearance of a substance, not its chemical composition.
Chemical changes cause a substance to change into an entirely substance with a new chemical formula.
Chemical changes are also known as chemical reactions. The “ingredients” of a reaction are called reactants, and the end results are called products.
Terms
chemical changeA process that causes a substance to change into a new substance with a new chemical formula.
chemical reactionA process involving the breaking or making of interatomic bonds and the transformation of a substance (or substances) into another.
physical changeA process that does not cause a substance to become a fundamentally different substance.
There are two types of change in matter: physical change and chemical change. As the names suggest, a physical change affects a substance’s physical properties, and a chemical change affects its chemical properties. Many physical changes are reversible (such as heating and cooling), whereas chemical changes are often irreversible or only reversible with an additional chemical change.
Explanation:
Answer:
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