Chemistry, 10.07.2019 19:30, Flowershere121
What makes a rock an ore? a. it has to contain metal. b. it has to be igneous in origin. c. it has to be able to be mined economically. d. it has to be able to be dug out of the ground.
Answers: 2
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Can you reduce your impairment by drinking coffee or cold showers? true or false?
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Chemistry, 21.06.2019 18:00, anamaliiow
Acylinder is filled with 2.00 moles of nitrogen, 3.00 moles of argon and 5.00 moles of helium. if the gas mixture is at stp, what is the partial pressure of the argon
Answers: 1
What makes a rock an ore? a. it has to contain metal. b. it has to be igneous in origin. c. it h...
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