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प्रश्न
What is meant by H20 and 3H2O
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उत्तर
H20 represents one molecule of water. 3H20 represents 3 molecules of water.
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संबंधित प्रश्न
Give two examples for the following: Metals
Give two examples of Metals.
Answer the following question:
When iron is mixed with sulphur at room temperature, it does not form a compound. Why?
Indicate whether the following statement is true or false:
Molecules combine to form atoms
Tick (√) the correct alternative from the choice given for the following statement
The most ductile metal.
Write the names of elements from the following symbol:
Xe
Explain the difference between Atoms and molecules.
Select the correct answer from the choice in the bracket.
The least reactive metal.
Differentiate between homogenous & heterogeneous mixtures.
Match the following.
| Atom | Building block of matter |
| Element | Atoms of different kinds |
| Compound | Atoms of the same kind |
| Molecule | Smallest unit of a substance |
