Wks 3.1 - classifying matter (2 pages)
complete the blank labels in the diagram below.
c...
Chemistry, 27.08.2019 07:10 coolkitty35
Wks 3.1 - classifying matter (2 pages)
complete the blank labels in the diagram below.
can be separated
physically
e
definite composition s
(homogeneous)
mixture of
substances
variable composition
can be separated
chemically
(examples: water
sodium chloride)
(examples: carbon
hydrogen, oxygen)
uniform
also called a solution
nonuniform:
distinct phases
in alamiananeous mixture heteropencous mixture, compound, or an element.
Answers: 2
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What are the concentrations of hydroxide and hydronium ions in a solution with a ph of 10.2?
Answers: 1
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Adeuteron, 21h, is the nucleus of a hydrogen isotope and consists of one proton and one neutron. the plasma of deuterons in a nuclear fusion reactor must be heated to about 3.02×108 k . what is the rms speed of the deuterons? express your answer using two significant figures.
Answers: 1
Chemistry, 22.06.2019 12:30
The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms
Answers: 1
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