The density of gold is approximately .1785 g/l. what is the mass of a sample of helium that occupies 50.0 l of space? round your answer to the correct number of significant figures. 1.00 g 9.00 g 50.0 g 280. g

Can smoke be transformed into liquid or used as energy or both?

The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is call

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