Question

A shiny brown coloured element 'x' on heating in air becames black in colour. name the element 'x' and the black coloured compound formed.

Answer 1

the shiny brown colour element is copper and the compound is copper oxide

Answer 2

Hey Mate ✌

↪ Here's your answer friend,

A shiny brown coloured element 'X' on heating in air becames black in colour.

⏩The name of 'X' (element) is Copper.

⏩And the black coloured compound formed is Copper Oxide.

⭐ Hope it helps you : ) ⭐