Copper ( ||) sulfate crystals CuSO₄ · H₂O can be made by heating copper ( || ) oxide with dilute sulfuric acid and then crystallising the solution formed. a) Calculate the maximum mass of crystals that could be made from 4.00g of copper ( ||) oxide using an excess of sulfuric acid.

CuO(s) + H₂SO₄(aq) → CuSO₄(aq) + H₂O(l)
CuSO₄ (aq) + 5H₂O (l) → CuSO₄ · H₂O(s)

b) If the actual mass of CuSO₄ collected at the end of the experiment was 11.25g . Calculate the percentage yield (RAMs : H -1, O-16, S-32, Cu-64)

What is the compound name for the formula [ru(en)2cl2]2+ and [co(en)cl2br]-

Glucose (c6h12o6) is an important biological molecule. (round the answer to nearest hundredth.) what is the percent by mass of carbon in glucose?

Need asap question 1 minerals are organic compounds. true false question 2 what vitamin can be found in foods like oranges, grapefruits, and broccoli? a. vitamin a b. vitamin k c.vitamin c d. vitamin d question 3 what are minerals? a. chemical elements that are needed for body processes. b. organic compounds that the body needs in small amounts to function properly. c. small molecules used to build proteins. d. an organic compound that is insoluble in water and includes fats. question 4 how many types of vitamins does the human body need? a. 15 b. 11 c. 13 d. 17 question 5 vitamins are a good source of energy. true false