Chemistry, 21.10.2020 23:01, miamidolphinslv9736
A black rock has a mass of 12.5 grams. When dropped into a graduated cylinder, the volume rises from 20 ml to 24 ml. What is the density of the rock?
Answers: 2
Chemistry, 22.06.2019 13:30, citlalli30
1) which of the following is the best example of a physical change? a) sugar dissolving in tea b) firefly glowing 2) in the combustion of ethane, what is/are the reactants? c2h6 + o2 ==> co2 + h2o a) c2h6 and o2 b) co2 and c2h6
Answers: 2
Chemistry, 23.06.2019 01:00, akluke6059
Which statement characterizes synthetic polymers? a. they come from animals and plants. b. they are found in nature. c. they are made in a lab. d. they are components of starch.
Answers: 1
Chemistry, 23.06.2019 03:00, rayne40
The size (radius) of an oxygen molecule is about 2.0 ×10−10m. make a rough estimate of the pressure at which the finite volume of the molecules should cause noticeable deviations from ideal-gas behavior at ordinary temperatures (t= 300k ). assume that deviatons would be noticeable when volume of the gas per molecule equals the volume of the molecule itself.
Answers: 3
A black rock has a mass of 12.5 grams. When dropped into a graduated cylinder, the volume rises from...
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