Chemistry, 14.07.2019 18:30 Lenaaa2019
Which of the following properties would be the same among isotopes of the same element? a. flammability b. density c. melting point d. color
Answers: 1
Chemistry, 22.06.2019 08:30
7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 โ 4 sentences in your explanation. 8. when a 2.5 mol of sugar (c12h22o11) are added to a certain amount of water the boiling point is raised by 1 celsius degree. if 2.5 mol of aluminum nitrate is added to the same amount of water, by how much will the boiling point be changed? show all calculations leading to your answer or use 3 โ 4 sentences to explain your answer. 9. if 5.40 kcal of heat is added to 1.00 kg of water at 100โฐc, how much steam at 100โฐc is produced? show all calculations leading to an answer. 10. the freezing of water at 0โฐc can be represented as follows: h2o (l) โ h2o(s) the density of liquid water is 1.00 g/cm3. the density of ice is 0.92 g/cm3. in 3 โ 4 sentences explain why applying pressure causes ice to melt.
Answers: 1
Chemistry, 22.06.2019 10:30
Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive
Answers: 2
Chemistry, 22.06.2019 22:30
You just calculated that the heat of fusion for chloromethane is 6400 j/mol. the heat of fusion for hydrogen is 120 j/mol.? which of the following account for this difference? more than one correcta. chloromethane can absorb more energy at the same temperature. b. hydrogen has stronger intermolecular forces than chloromethane. c. hydrogen molecules can pack more closely than chloromethane molecules. d. chloromethane experiences dipole-dipole interactions. e. chloromethane has a higher molar mass than hydrogen.
Answers: 3
Which of the following properties would be the same among isotopes of the same element? a. flammabi...
Mathematics, 28.01.2020 05:31
Mathematics, 28.01.2020 05:31