Filtration can be used to separate mixtures based on

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

Asample of ammonia reacts with oxygen as shown. 4nh3(g) + 5o2(g) 4no(g) + 6h2o(g) what is the limiting reactant if 4.0 g of nh3 react with 8.0 g of oxygen? o2 because it produces only 0.20 mol of no. nh3 because it produces only 0.20 mol of no. o2 because it produces two times less no than nh3. nh3 because it produces three times more no than o2.

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.