Chemistry
Grade-10
Easy
Question
What is a physical change?
- How two chemicals react with one another when combined
- A property that we can measure or observe with our 5 senses or other tools
- When two chemicals react with one another to form a new substance
- When a change occurs but it does not result in the formation of a new substance
Hint:
Physical changes don't involve any chemical interactions, thus formation of any new substance can't be seen. Such changes are reversible and temporary.
The correct answer is: When a change occurs but it does not result in the formation of a new substance
When a change occurs but it does not result in the formation of a new substance refers to a physical change.
- We witness a large number of changes every day. Everything around us undergoes certain changes.
- There are two types of changes in the matter; Physical change and chemical change.
- Physical changes don't change or affect the identity or the composition of the substance.
- No chemical reactions take place, thus formation of a new substance doesn't take place.
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