2points
according to the law of conservation of matter, what number must be the
same on each side of a chemical equation?
a. the total number of chemical symbols
o
b. the number of atoms of each element
o
c. the number of substances
d. the total number of chemical formulas
Answers: 2
Physics, 22.06.2019 04:10
Calculate the work done by an external agent during an isothermal compression of 1.00 mol of oxygen from a volume of 22.4 l at 10∘c and 1.0 atm pressure to 16.8l
Answers: 2
Physics, 22.06.2019 05:00
Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.
Answers: 1
Physics, 22.06.2019 09:30
The necleus of an atom is made up of what subatomic particles?
Answers: 1
Physics, 22.06.2019 09:50
If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?
Answers: 3
2points
according to the law of conservation of matter, what number must be the
same on...
according to the law of conservation of matter, what number must be the
same on...
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