Atoms and Molec...

Which of the following is not a compound?

.............. is the smallest unit of an element that maintains the properties of that element.

Calculate the molecular mass of $$H_2O$$ (Water)

An atom which is deficient of electrons is called a  ________ .

Molecules are the components of:

When hydrogen and oxygen combine to form water, they form:

3 g of a hydrocarbon on combustion in excess of oxygen produces 8.8 g of $$CO_2$$ and 5.4 g of $$H_2O$$. 

The weights of two elements which combines with one another are in the ratio of their:

Weight of oxygen in $$32.2$$ g $$\displaystyle Na_{2}SO_{4}$$.$$\displaystyle 10H_{2}O$$ is:

Modern atomic mass scale is based on the mass of: