Question

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Answer 1

Answer:

• chemical
• chemical
• physical
• physical

• physical

• chemical

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Answer 2

Answer:

Uʀ ᴀɴsᴡᴇʀ ➪

1. In an irreversible physical change, the original form cannot be restored. Melting ice and grinding wood into sawdust are examples of physical changes.

2.A change in which one or more new substances are formed is called a chemical change. A chemical change is also called a chemical reaction.

3.sound or gas is produced in physical change .

4.When a force acts on an object, the object may change shape by bending, stretching or compressing - or a combination of all three shape changes. ... Pull an object's ends apart, eg when a rubber band is stretched. Push an object's ends together, eg when an empty drinks can is squashed.

6.During a physical temperature change, one substance, such as water is being heated. However, in this case, one compound is mixed in with another, and these reactants produce a product. When the reactants are mixed, the temperature change caused by the reaction is an indicator of a chemical change.

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