Chemistry Past Questions and Answers

Element X, Y and Z belong to a groups I, V and VII respectively. Which of the following is TRUE about the bond types of XZ and YZ<sub style='font-size: smaller;'>3</sub>?

A solid that absorbs water from he atmosphere and forms an aqueous solution is?

A major effect of oil pollution in coastal waters is the?

Sodium chloride has no solubility product value because of its?

The solubility, in moles per dm<sup style='font-size: smaller;'>3</sup> of 20.2 g of potassium trioxonitrate (V) dissolve in 100 g of the resulting mixture is?<br/>(K = 39, O = 16, N =14).