Atoms and Molecules Quiz 5

Symbol of nitrate is ……

Symbol of sodium ion is ……

The formula of Aluminium Carbonate is ………

The symbol of Zinc ion is ……

CO : 1 : 1 :: $CO_2$ : ….. ?

Molecules in water is $H_2O$, then molecules in the Hydrogen is

Why did symbol of copper taken as ‘Cu’ ?

Generally all inert gases like He, Ne, Ar, Kr, Xe are available as monoatomic elements. Guess the reason.

If '$x^{-1}$' and Na'x', then 'x' may be

The valencies of ‘Mg’ and ‘O’ are …… respectively in MgO.

'$X_2Y$', 'X' H 'Y', 'X' OH

Guess X and Y.

By using $Ag^+$ $Cl^-$, $Na^+$, $OH^-$ How many substances can be formed?

No. of molecules in 44 grams of $CO_2$ is equal to

Law of conservation of mass was proposed by

Law of conservation of mass was experimentally verified by