If one mole of aluminium contains 6 x 1023 atoms of aluminium, how many atoms are contained in 0.9g of aluminium? (Al = 27)

An element X has 127 neutrons and 82 electrons. Its atomic number is?

When glowing splint is inserted into the mouth of a jar containing a gas, the splint is extinguished. The gas gives a white precipitate when passing into bar...

An example of a strong electrolyte is?

Methane is member of the homologous series called?

The mass number of an atom is?

The oxidation number of manganese in KMnO4 is?

When a bottle of Coca-Cola is opened, bubbles of evolve. The gas is?

For iron to rust, there should be present?