Chemistry, 28.06.2019 22:00 morgannwaldrupp
How many atoms are there in 2 moles of sodium? a. 6.02 × 10^23 atoms b. 1.2 × 10^24 atoms c. 3.32 × 10^24 atoms d. 2.4 × 10^25 atoms (not a or d)
Answers: 1
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Use the de broglie's wave equation to find the wavelength of an electron moving at 4.5 × 106 m/s. show your work. note: h= plank's constant (6.62607 x 10-34 j s)
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Of element x has 22 protons, how many electrons does it have
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Asap a 50.0 ml soap bubble is blown in a 27.0°c room. it drifts out an open window and lands in a snow bank at -3.0°c. what is its new volume?
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Chemistry, 23.06.2019 15:30
Ms. sullivan's class is designing a miniature roller coaster. after first setting it up, they find that it didn't have enough speed to go through the loop de loop. instead of taking out the loop, they decide to increase the height of the first hill the coaster goes down, and this adds the speed needed to make it through the loop. what would be a drawback to this plan in real life? a) no one likes loop de loops. b) there is no downside to this plan. c) a higher hill means a scarier ride. d) a higher hill takes more time and material to build.
Answers: 1
How many atoms are there in 2 moles of sodium? a. 6.02 × 10^23 atoms b. 1.2 × 10^24 atoms c. 3.32 ×...
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