Chemistry, 06.10.2019 19:30, autumnrose02
Acar travels 300 km in 6 hours. what is the average speed of the car in km/ hr?
Answers: 2
Chemistry, 22.06.2019 08:30, jalst6084
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 β 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 β 4 sentences to explain your answer. 9. if 5.40 kcal of heat is added to 1.00 kg of water at 100β°c, how much steam at 100β°c is produced? show all calculations leading to an answer. 10. the freezing of water at 0β°c can be represented as follows: h2o (l) β h2o(s) the density of liquid water is 1.00 g/cm3. the density of ice is 0.92 g/cm3. in 3 β 4 sentences explain why applying pressure causes ice to melt.
Answers: 1
Chemistry, 22.06.2019 12:00, daytonalive83481
Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadroβs number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.
Answers: 1
Chemistry, 22.06.2019 13:30, suemmimonjaras8374
The atomic number, or number, is the described as the number of in the nucleus of an chemical element.
Answers: 1
Acar travels 300 km in 6 hours. what is the average speed of the car in km/ hr?...
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