Highlight the Correct Statement that answers the question, Why are three recording stations or
circles necessary to locate the Epicenter of an Earthquake?
a. Three recording stations or circles are most accurate when the earthquake happens on the
surface of the Earth, but a below grade earthquake would only require two recording stations
b. One circle would give your infinite epicenters two circles would give your two epicenters, and
three circles meet in one place, if done correctly
c. One circle would give you one epicenter two circles would give you two epicenters, whereas
three circles would give you three epicenters

What are the variables in gay-lussac’s law? pressure and volume pressure, temperature, and volume pressure and temperature volume, temperature, and moles of gas

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.

Light waves travel than sound waves.