Question

Two chemical species X and Y combine together to form a product P which contains both X and Y.

X + Y P

X and Y cannot be broken down into simpler substances by simple chemical reactions. Identify the species X, Y and P ?

(i) P is a compound

(ii) X and Y are compounds

(iii) X and Y are elements

(iv) P is a element.

A.(i) and (iii)

B.(i) and (ii)

C.(ii), (iii) and (iv)

D.(i), (iii) and (iv)​

Answer 1

Answer:

A.(i) and (iii)

Explanation:

X and Y cannot be broken down into simpler substances by simple chemical reactions, means that they are elements. Elements cannot be further divided (or of they are, then we'll have sub atomic particles which cannot form an element individually).

Then the chemical substance 'P' is a compound as it is made by the reaction of two elements.

Thus we can say X and Y elements combine to form the compound P.