Question

P is a solid substance which is very hard. It is used in the construction industry as a building material.

Answer 1

Answer:

I THINK YOU HAVE LEFT THE QUESTION INCOMPLETE... PLEASE WRITE FULL QUESTION

Explanation:

HERE'S CORRECT ANSWER FOR FULL QUESTION

(a) Substance P is Calcium Carbonate (Limestone), CaCO3.

(b) Substance Q is Calcium oxide, CaO

(c) Gas R is carbon dioxide.

(d) Substance S is Calcium hydroxide, Ca(OH)2; Lime water

(e) Substance T is Calcium carbonate; Limestone and Marble