Chemistry, 01.03.2021 20:20 sandersmakaylaovq5vu
Cloudy nights are often warmer than clear nights. Why is this so?
The clouds generate wind
The clouds trap heat energy during the daylight hours
The clouds store and release heat from the inner Earth
The clouds release heat generated by the friction of air molecules
Answers: 1
Chemistry, 23.06.2019 07:00, Teddybearnerd
The image compares the arrangement of electrons in two different neutral atoms. a figure labeled atom q has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has six black spheres. to the left of this figure is another figure labeled atom p. atom p has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has seven black spheres. which of the following best explains the position of the two atoms in the periodic table?
Answers: 2
Chemistry, 23.06.2019 07:00, SMURFETTE86
Under what conditions will a gas be most likely to exhibit the ideal gas properties predicted by the ideal gas law? 1)high pressures and high temperature, because particles are forced closer together with higher kinetic energy, so intermolecular forces of attraction are weaker 2)high pressure and low temperature, because particles are forced closer together and moving slower, so the volume of the particles is less significant 3) low pressure and high temperature, because particles are spread farther apart and moving faster, so the intermolecular forces of attraction are weaker 4)low pressure and low temperature, because particles are spread farther apart with lower kinetic energy, so the volume of the particles is less significant
Answers: 2
Chemistry, 23.06.2019 08:40, sugakookies1
The activation energy for this reaction is 75 kj·mol–1. the enzyme catalase (found in blood) lowers the activation energy to 8.0 kj·mol–1. at what temperature would the non-catalyzed reaction need to be run to have a rate equal to that of the enzyme-catalyzed reaction at 25°c?
Answers: 2
Cloudy nights are often warmer than clear nights. Why is this so?
The clouds generate wind
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