An element reacts with oxygen to form an oxide which dissolves in dilute hydrochloric acid. The oxide formed turns a solution of red litmus blue.
State two reasons to support your answer.

An element reacts with oxygen to form an oxide which dissolves in dilute hydrochloric acid. The oxide formed turns a solution of red litmus blue. Is the element a metal or a non-metal ?

An element combines with oxygen to form an oxide. This oxide dissolves in water. This aqueous solution changes blue litmus to red. Write the nature of the aqueous solution (alkaline or acidic).

An element combines with oxygen to form an oxide. This oxide dissolves in water. This aqueous solution changes blue litmus to red. Write the nature of the element (metal or nonmetal)

A certain element is forms a solid oxide which dissolves in water to form an acidic solution. The element is

Reddish brown copper reacts with oxygen to form ..... oxide.

Acidic oxides that are dissolved in water turn red litmus blue.

Which one of the following solutions will turn red litmus blue?

Ozone reacts with dry iodine to form an oxide having ____oxygen atoms in its molecules.

Which oxide will turn red litmus solution blue ?

Sodium reacts with oxygen to produce sodium oxide, which dissolves in water to form sodium hydroxide. On adding hydrochloric acid to the base solution, salt and water are produced. Write balanced chemical equations to represent all the reactions stated in the question.