Atoms and Molec...

Smallest particles of matter which cannot be further divided are called:

Which law states that the total mass of the reactants is equal to the total mass of the products in a chemical reaction?

Assertion : Formula mass (in grams) of magnesium chloride has $$12.044\times 10^{23}$$ magnesium ions. Reason : One formula mass of an ionic compound has $$6.022\times 10^{23}$$ ions of each type.

What is the mass (in grams) of $$3$$ moles of $$N$$ atom?

What is the mass of one atom of $$C-12$$ in grams?

A neutral atom of an element has a nucleus with a nuclear charge 13 times and mass 27 times that of hydrogen nucleus. What is the ratio of electrons to protons in its stable positively charged ion?

When hydrogen burns in oxygen, _________ is produced.

The percentage by mole of $${ NO }_{ 2 }$$ in a mixture of $${ NO }_{ 2 }(g)$$ and $$NO(g)$$ having average molecular mass 34 is :

Barium chloride reacts with sodium sulphate to form Barium sulphate and sodium chloride. Then, according to the law of conservation of mass: