Practice Questions for Atoms and Molecules Science Class 9
Kalium is the Latin name of _________.
The quantity of matter present in an object is called its _________.
Atomic mass of calcium is 40. The mass of 2.5 gram atoms of calcium is __________.
A sample contains 22 g of carbon dioxide. This is equal to ________.
The mass of 1 mole of nitrogen atom is
The element which is Octa-atomic is
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