Chemistry, 06.12.2020 23:30 erinmcdonald6673
2. It is estimated that for every person infected with the polio virus in an endemic country, there are 200 people at risk for contracting the virus. Given the results of Study 1, how many people would have been at risk for becoming infected with the polio virus in Nigeria in June 2004? F. 80 G. 200 H. 800 J. 16,000
Answers: 2
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 â 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 â 4 sentences to explain your answer. 9. if 5.40 kcal of heat is added to 1.00 kg of water at 100â°c, how much steam at 100â°c is produced? show all calculations leading to an answer. 10. the freezing of water at 0â°c can be represented as follows: h2o (l) â h2o(s) the density of liquid water is 1.00 g/cm3. the density of ice is 0.92 g/cm3. in 3 â 4 sentences explain why applying pressure causes ice to melt.
Answers: 1
Chemistry, 22.06.2019 18:00
How is energy related to the change of state represented by the model? atoms gain energy as a solid changes to a liquid. atoms gain energy as a solid changes to a gas. atoms lose energy as a solid changes to a liquid. atoms lose energy as a solid changes to a gas.
Answers: 3
Chemistry, 22.06.2019 19:30
What is the area in square meters of 448 g ai foil that has a thickness of 23921 nm? the density is 2.70 g/cm
Answers: 3
Chemistry, 22.06.2019 22:30
Which statement best summarizes the importance of ernest rutherfordâs gold foil experiment? it proved that all of john daltonâs postulates were true. it verified j. j. thomsonâs 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
2. It is estimated that for every person infected with the polio virus in an endemic country, there...
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