Chemistry, 28.04.2021 22:00 2021andrewkell
7. A sample of salmon -colored powder contains 0.700 of chromium 0.650 g of sulfur , and 1.30 g oxygen. The molar mass is 392.2g / m * o * l . What is the molecular formula of this compound ?
Answers: 3
Chemistry, 22.06.2019 12:30
Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.
Answers: 3
Chemistry, 23.06.2019 03:30
The molar mass of iron(fe) is 55.8 g/mol. what is the mass in grams of 2.25 moles of iron?
Answers: 1
7. A sample of salmon -colored powder contains 0.700 of chromium 0.650 g of sulfur , and 1.30 g oxyg...
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