The sequence of energy transformations shown in the diagram explains which event? A. A flashlight is on
B. Gasoline burns to power a car
C. A candle burns
D. Electric current runs a refrigerator

Asample of ammonia reacts with oxygen as shown. 4nh3(g) + 5o2(g) 4no(g) + 6h2o(g) what is the limiting reactant if 4.0 g of nh3 react with 8.0 g of oxygen? o2 because it produces only 0.20 mol of no. nh3 because it produces only 0.20 mol of no. o2 because it produces two times less no than nh3. nh3 because it produces three times more no than o2.

When water dissolves sugar, which process is not involved? o dissociation o hydration o surface area of the solute increases sa

What is the approximate vapor pressure when the gas condenses at 70 degrees celsius