Chemistry
Grade-10
Easy
Question
What is a chemical 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:
A chemical reaction or chemical change can be defined as the conversion of one or more substances to new substances or products.
The correct answer is: When two chemicals react with one another to form a new substance
When two chemicals react with one another to form a new substance is a chemical change.
- When a substance undergoes a chemical change, its molecular composition gets altered entirely.
- Thus, chemical changes involve the formation of new substances.
- Generally, one substance may undergo decomposition to form new products which can be said to be a chemical change.
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______________is the direct source of information about the Earth’s interior.
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