Chemistry, 29.09.2019 04:00 jessicabestard0607
Which statement best describes the properties of metals?
a) they are shiny and bend without breaking
b) they are dull and are good electrical insulators
c) they conduct electricity well and are brittle
d) they can be flattened and do not conduct heat well
Answers: 2
Chemistry, 21.06.2019 23:30
Problem #3 (ch. 1, problem 15)the ideal gas law provides one way to estimate the pressure exerted by a gas on a container. the law isí‘ťí‘ť=푛푛푛푛푛푛푉푉more accurate estimates can be made with the van der waals equationí‘ťí‘ť=푛푛푛푛푛푛푉푉â’푛푛푟푟â’푞푞푛푛2푉푉2where the term nb is a correction for the volume of the molecules and the term an2/v2is a correction for molecular attractions. the values of a and b depend on the type of gas. the gas constant is r, the absolutetemperature is t, the gas volume is v, and the number of moles of gas molecules is indicated by n. if n = 1 mol of an ideal gas were confined to a volume of v = 22.41 l at a temperature of 0â°c (273.2k), it would exert a pressure of 1 atm. in these units, r = 0.0826.for chlorine gas (cl2), a = 6.49 and b = 0.0562. compare the pressure estimates given by the ideal gas law and the van der waals equation for 1 mol of cl2 in 22.41 l at 273.2 k. what is the main cause of the difference in the two pressure estimates, the molecular volume or the molecular attractions?
Answers: 1
Chemistry, 22.06.2019 09:00
Acrystal that absorvd water from air is (blank)a. aqueousb. homogenousc. hygroscopicd. efflorescent
Answers: 1
Chemistry, 22.06.2019 23:50
Which scientists contributed to the determination of how cfcs in clouds in the upper atmosphere could destroy ozone molecules
Answers: 1
Chemistry, 23.06.2019 01:00
How does carbon monoxide pose the greatest threat to humans? a. it can be produced by wood fires. b. it can be produced by home furnaces. c. it is produced by acid rain. d. it is produced by modern automobiles.
Answers: 2
Which statement best describes the properties of metals?
a) they are shiny and bend without...
a) they are shiny and bend without...
Mathematics, 06.01.2021 22:30
Biology, 06.01.2021 22:30
SAT, 06.01.2021 22:30
Mathematics, 06.01.2021 22:30
Mathematics, 06.01.2021 22:30
Social Studies, 06.01.2021 22:30
English, 06.01.2021 22:30
Social Studies, 06.01.2021 22:30
Mathematics, 06.01.2021 22:30
Mathematics, 06.01.2021 22:30
Biology, 06.01.2021 22:30
Mathematics, 06.01.2021 22:30