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Chemistry, 22.06.2019 10:00
Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.
Answers: 1
Chemistry, 23.06.2019 08:40
A20 liter cylinder of helium at a pressure of 150 atm and a temperature of 27Β°c is used to fill a balloon at 1.00 atm and 37Β°c. what is the volume of the balloon? a. 0.14 liters b. 3000 liters c. 2900 liters d. 2400 liters e. 3100 liters
Answers: 1
Chemistry, 23.06.2019 10:00
How many moles are equal to 2.4Γ10^23 formula units of sodium chloride
Answers: 1
The atoms and molecules that move the most quickly....
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