Chemistry, 01.12.2021 21:00 PrincessIndia
A weather balloon has a volume of 770 L when filled with helium at 8 ∘C at a pressure of 400 torr . What is the final volume, in liters, of the balloon, where the pressure is 0.21 atm and the temperature is − 47 ∘C, when the amount of gas does not change? Express your answer to two significant figures and include the appropriate units.
Answers: 2
Chemistry, 22.06.2019 10:10, babyphoraaaaa
For the reaction, 4 a(g) + 3 b(g) => 2 c(g), the following data were obtained at constant temperature. experiment initial[a],mol/l initial [b],mol/l initial rate, m/min 1 0.200 0.150 5.00 2 0.400 0.150 10.0 3 0.200 0.300 10.0 4 0.400 0.300 20.0 which of the following is the correct rate law for the reaction? 1. rate = k[a]2[b]2 2. rate = k[a][b] 3. rate = k[a]2[b] 4. rate = k[a][b]2
Answers: 3
Chemistry, 22.06.2019 19:20, Lovelybunny321
15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.
Answers: 1
Chemistry, 22.06.2019 22:30, needhelpasap8957
Why is the bottom layer of a trophic pyrimid the
Answers: 2
Chemistry, 23.06.2019 00:00, ahmedeldyame
#20 which type of bond is formed when bases pair in dna? ionic bond covalent bond coordinate bond hydrogen bond
Answers: 1
A weather balloon has a volume of 770 L when filled with helium at 8 ∘C at a pressure of 400 torr ....
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