A U. S. penny, which is composed of copper-plat zinc (97.5% Zn, 2.5% Cu), has a mass of 2.500g. Hydrochloric acid (HCl) does not react with copper by it does react with zinc. How many grams of H2 are formed by reacting the zinc in the penny with excess HCl? Zn(s) + 2HCl(aq) -> ZnCl2(aq) + H2(g)

a
0.0301g
b
0.0772g
c
0.151g
d
0.0753g

The boiling point of liquids is very high what does it indicate

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

How much carbon is stored in the atmosphere as co2