Question

7.
Which of the following materials fall in the category of a "pure
substance"?
(a) Ice
(b) Milk
(c)
Iron
(d) Hydrochloric acid
(e) Calcium oxide
Mercury
Brick
(h) Wood
(i) Air​

Answer 1

Answer:

I think ice ......

.....

Answer 2

i think ice

Explanation:

...............