Chemistry Questions

Which of the following is also used as a Bio fertilizer?

Which of the follow is the last element in Newlands Law of Octaves classification?

30 litres of salt solution contains 5% salt. How many litres of water must be added so as to get a resultant solution containing 3%salt?

A solution contains 33 g of common salt in 320 g of water. Calculate the concentration in terms of mass, by mass percentage of the solution.

In a compound the elements are always present in definite proportions by ______

Barium loses ____ electrons to achieve noble gas electron configuration.

The conversion of hard water into soft water by boiling or adding calcium hydroxide is called _______.

The polar ice-caps are made of ____________ water