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 ā 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 ā 4 sentences to explain your answer. 9. if 5.40 kcal of heat is added to 1.00 kg of water at 100ā°c, how much steam at 100ā°c is produced? show all calculations leading to an answer. 10. the freezing of water at 0ā°c can be represented as follows: h2o (l) ā h2o(s) the density of liquid water is 1.00 g/cm3. the density of ice is 0.92 g/cm3. in 3 ā 4 sentences explain why applying pressure causes ice to melt.
Answers: 1
Chemistry, 22.06.2019 13:50
What happens when an atom of sulfur combines with two atoms of chlorine to produce sci2? a. each chlorine atom shares a pair of electrons with the sulfur atom. b. an electron is transferred from each chlorine atom to the sulfur atom. c. an electron is transferred from the sulfur atom to each chlorine atom. d. each chlorine atom shares all its valence electrons with the sulfur atom.
Answers: 2
Chemistry, 22.06.2019 14:50
Complete the following statements to describe solids, liquids, and gases. select the correct answer from each drop-down menu. a solid a definite volume and a definite shape. a liquid a definite volume and a definite shape. a gas a definite volume and a definite shape
Answers: 1
Chemistry, 22.06.2019 22:30
Which statement best summarizes the importance of ernest rutherfordās gold foil experiment? it proved that all of john daltonās postulates were true. it verified j. j. thomsonās work on the atomic structure. it showed that an electron circles a nucleus in a fixed-energy orbit. it showed that a nucleus occupies a small part of the whole atom.
Answers: 1
How many moles of can be made from 7.80 mol H 2 and an excess of Cl 2 ?...
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