One mole of propane (44 grams) reacts with 5 moles of oxygen to produce 2220 kJ of heat. How many grams of propane would produce 6660 kJ of heat? A. 220 g B. 132 g C. 4440 g D. 49 g

Which of the following is an example of potential energy changing into kinetic energy? A. A girl climbing up a hill B. A fruit falling from a tree C. A car stopping when the brake is applied D. A child on a swing slowing down as she swings upwards

What percentage of the ATP generated from glucose results from oxidative phosphorylation via electron transport chain? 60% 70% 80% 90%

What is the mass in g of 0.850 mol of H atoms?

A pure substance where atoms of two or more elements are chemically bonded to one another

What does it mean when a person says everything is made of Stardust?

Write a balanced chemical equation for the complete combustion of C3H7BO3, a gasoline additive. The products of combustion are CO2 (g), H2O (g), and B2O3 (s).

Which of the following polymers is used in plastic bottles and plastic containers? Select one: a. LDPE b. PVC c. Polystyrene d. HDPE e. Polypropylene

Which of the following statement is not true? A) The sun is involved in producing tides B) There can be two high tides in one location during a single day C) Only the oceans have tides D) If there is a high tide, there will be a low tide

A solution which has a concentration that exceeds its predicted solubility at a certain temperature and pressure would be -

Convert 4.992*1010 g to each of the following units. B. Mg c. mg D. metric tons