chemical-aritmatic

Related Questions

• A compound contains atoms of three elements in $A$, $B$ and $C$. If the oxidation number of $A$ is +2, $B$ is +5 and that of $C$ is – 2, the possible formula of the compound is

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• The element whose a atom has mass of $10.86 \times {10^{ - 26}}$kg is

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• Which of the following contains only one element

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• $12g$of $Mg$(at.mass 24) on reacting completely with acid gives hydrogen gas, the volume of which at STP would be

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• 19.7 kg of gold was recovered from a smuggler. How many atoms of gold were recovered (Au =197)

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