If an atom is located in the 3rd period, which of the following is true: a. it will have 2 energy levels. b. it will have 3 energy levels. c. it can hold a maximum of 8 electrons in the third energy level d. it can hold a maximum of 18 electrons in the second energy level e. it will be in the same row as magnesium

How is the composition of a meteorite relevant to finding out the composition of earth's core?

Label a-f based on the table using c for concentrated and d for dilute

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 – 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 – 4 sentences to explain your answer. 9. if 5.40 kcal of heat is added to 1.00 kg of water at 100⁰c, how much steam at 100⁰c is produced? show all calculations leading to an answer. 10. the freezing of water at 0⁰c can be represented as follows: h2o (l) ↔ h2o(s) the density of liquid water is 1.00 g/cm3. the density of ice is 0.92 g/cm3. in 3 – 4 sentences explain why applying pressure causes ice to melt.