Chemistry, 15.04.2021 18:30 courtneymetzinp7pitt
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Answer The Following Questions:
1. What is the mass in grams of 2.64 mol of sulfur dioxide, SO2?
2. Calculate the mass of 3.57 mol of magnesium nitrate, Mg(NO3)2.
3. How many moles are there in 79.0 g Li2SO4?
4. What is the mass in grams of hydrogen in 215 g of sugar, C12H22O11?
Answers: 2
Chemistry, 22.06.2019 03:10
Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.
Answers: 1
Chemistry, 22.06.2019 06:00
The tilt of the earth's axis of rotation is responsible for the a) ocean's tides. b) size of the moon. c) brightness of stars. d) earth’s seasons.
Answers: 1
Chemistry, 22.06.2019 10:30
Which of these is not an example of chemical weathering? a. iron-rich mineral rusting b. feldspar turning into clay c. limestone reacting with acid d. granite breaking up into sand
Answers: 1
Chemistry, 22.06.2019 10:50
8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm
Answers: 1
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