Chemistry, 16.05.2021 23:00 cassandrabeliles
Which of the following components of air pollution is not as a result of a human activities?
a.
methane from landfill waste
b.
dust particulates
c.
carbon monoxide from exhaust gases of vehicle engines
d.
sulfur dioxide from burning coal
e.
nitrogen oxides from burning stoves
Answers: 2
Chemistry, 21.06.2019 18:00
Write a net ionic equation to show that hydrofluoric acid, behaves as an acid in water.
Answers: 1
Chemistry, 22.06.2019 06:00
What type of electromagnetic radiation has a shorter wavelength than blue light
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Chemistry, 22.06.2019 10:30
Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic
Answers: 1
Chemistry, 22.06.2019 14:00
The two naturally occurring isotopes of chlorine are 35cl (34.969 amu, 75.77%) and 37cl (36.966 amu, 24.23%). the two naturally occurring isotopes of bromine are 79br (78.918 rm amu, 50.69%) and 81br (80.916 amu, 49.31%). chlorine and bromine combine to form bromine monochloride, brcl. 1. how many peaks will be present in a mass spectrum for brcl? the four combinations of molecule possible given these four isotopes are: 81br37cl, 81br35cl, 79br37cl, and 79br35cl. 2. what are the masses of the four different brcl molecules? express the masses using six significant figures, in decreasing numeric order (highest to lowest), separated by commas.
Answers: 3
Which of the following components of air pollution is not as a result of a human activities?
a.
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