This is a statement of the law of Definite Proportions. Basically what it says is that the proportions of mass will always be the same and can't be changed.
Answer:
Atoms He (Avogadro’s number) → Moles of He (molar mass of He) → Mass of He
• molar mass of He (from the periodic table) = 4.003 g/mol
• Avogadro’s Number: Avogadro’s number gives us the number of entities present in 1 mole: 6.022 × 1023 He atoms in 1 mole of He
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The best description of Ernest Rutherford's experiment is letter C. The positively charged particles were fired through a gold foil.
Some Gases are lighter than air
Remember,Air is a mixture of gases
So you cant tell!
It depends on the gas
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Graphite and diamond come under covalent structure.