Chemistry, 15.04.2021 21:10 upadrastakameswari
Please answer this
The compound CO2(s) sublimes readily at 25°C. Which properties are usually associated with a compound that undergoes this kind of change?
1.high vapor pressure and high intermolecular attractions
2.high vapor pressure and low intermolecular attractions
3.low vapor pressure and high intermolecular attractions
4.low vapor pressure and low intermolecular attractions
Answers: 3
Chemistry, 22.06.2019 21:40
A5 mole sample of liquid acetone is converted to a gas at 75.0°c. if 628 j are required to raise the temperature of the liquid to the boiling point, 15.600 kj are required to evaporate the liquid, and 712 j are required to raise the final temperature to 75.0°c, what is the total energy required for the conversion?
Answers: 3
Chemistry, 23.06.2019 02:50
Dumbledore decides to gives a surprise demonstration. he starts with a hydrate of na2co3 which has a mass of 4.31 g before heating. after he heats it he finds the mass of the anhydrous compound is found to be 3.22 g. he asks everyone in class to determine the integer x in the hydrate: na2co3·xh2o; you should do this also. round your answer to the nearest integ
Answers: 2
Chemistry, 23.06.2019 17:10
What can form as a result of a chemical reaction? what can form as a result of a chemical reaction? compounds isotopes alpha particles beta particles
Answers: 2
Chemistry, 23.06.2019 20:30
What defines the mass number of an isotope? a. the sum of the neutrons and protons b. the sum of the neutrons and electrons c. the number of neutrons d. the number of protons
Answers: 3
Please answer this
The compound CO2(s) sublimes readily at 25°C. Which properties are usually assoc...
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