If 93.72 g of propane, C3Hg, is burned in excess oxygen, how many grams of water are formed?
C3Hg + O2 – CO2 + H2O
Select one:
O a. 153.1
O b. 459.4
O c. 114.9
O d. 19.14

Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change

Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?

Displacement is the slope of a velocity vs. time graph a. true b. false