A hard-boiled egg at a temperature of 15 °C and a fruit salad at a temperature of 10 °C are sitting on a 10 °C plate, in a room with a temperature of 20 °C.
Which of the following is a TRUE statement about how heat is moving in this situation?
A. There is heat flowing from the egg to the plate.
B. There is heat flowing from the plate to the room.
C. There is heat flowing from the fruit salad to the room.
D. There is heat flowing from the fruit salad to the plate.

Give the orbital configuration of the phosphorus (p) atom.

Aroom with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?

Tooth enamel consists mainly of the mineral calcium hydroxyapatite, ca_10(po_4)_6(oh)_2. trace elements in teeth of archaeological specimens provide anthropologist with clues about diet and diseases of ancient people. students at hamline university measured strontium in enamel from extracted wisdom teeth by atomic absorption spectroscopy. solutions with a constant total volume of 10.0 ml contained 0.726 mg of dissolved tooth enamel plus variable concentrations of added sr. added sr find the concentration of sr in the 10 ml sample solution in parts per billion = ng/ml. find the concentration of sr in tooth enamel in parts per million = mu g/g.