My teacher gave me this question for homework need help A copper sulfate solution contained 0.100 moles of copper sulfate dissolved in 0.500 dm3 of water. Calculate the mass of copper sulfate in 30.0 cm3 of this solution. Relative formula mass (Mr): CuSO4 = 159.5

Which of the following is not an assumption that scientists must make about the natural world? a. regularity b. causality c. predictability d. plausibility

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

Which of these is a density dependent factor? a. epidemic b. earthquake c. drought d. hurricane