2000 - JAMB Chemistry Past Questions and Answers - page 5

Powdered marble reacts faster with hydrochloric acid solution than the granular form because the powdered form has

N_2(g) + O_2(g) ↔ 2NO_(g); ΔH = + 180.6 kJ mol^-1
In the reaction above, increase in temperature will

For a reaction in equilibrium, the species involved in the equilibrium constant expression are

A phenomenon where an element exist in different forms in the same physical state is known as

The substance often use for vulcanization of rubber is

A gas that is not associated with global warming is

The refreshing and characteristic taste of soda water and other soft drinks is as a result of the presence in them of

A form of carbon used for absorbing poisonous gases and purification of noble gases is

Synthesis gas is a mixture of

Potassium vapour burns with a