Determine the median and the upper and lower quartiles of the set of data. 11, 21, 30, 29, 7, 26, 18, 12, 3, 10, 12, 15 a. median = 27, upper quartile = 23.5, lower quartile = 10.5 c. median = 12, upper quartile = 26, lower quartile = 10 b. median = 13.5, upper quartile = 10.5 lower quartile = 23.5 d. median = 13.5, upper quartile = 23.5, lower quartile = 10.5

Mrs. smith ordered a root beer float (vanilla ice cream + root beer). mrs. smith noticed that the three states of matter (solid, liquid, and gas) all existed simultaneously in her root beer float. a. identify each phase of matter in the root beer float. b. describe the particles of all three phases of matter in the root beer float. (how are the particles arranged and moving? ) c. identify one phase change you would see in a root beer float and described what causes this change.

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

6. what does the symbol ah stand for? o one calorie given off by a reaction the specific heat of a substance the heat capacity of a substance the heat of reaction for a chemical reaction