Sagot :
Answer:
xbnsn
Explanation:
1st:We need oxygen in pure form for some of the reasons. To obtain oxygen in its pure form and remove impurities from it, we need to separate it from the air. This is why separation of substances is necessary.
Answer:
xbnsn
Explanation:
1st:We need oxygen in pure form for some of the reasons. To obtain oxygen in its pure form and remove impurities from it, we need to separate it from the air. This is why separation of substances is necessary.