4Fe + 3O2  2Fe2O3

1. Classify the reaction that occurred between the iron and oxygen.

2. What evidence was there that a reaction took place?

Two gases have the same temperature but different pressures. The kinetic-molecular theory does not predict that a. molecules in both gases have the same average kinetic energies. b.

A major component of gasoline is octane. When liquid octane is burned in air it reacts with oxygen gas to produce carbon dioxide gas and water vapor. Calculate the moles of carbon dioxide produced by the reaction of of oxygen.

When 1,000 joules of coal is burned it only produces 500 joules of electricity. What happened to the other 500 joules of energy?

How many molds of atoms are there in each compound? 1. Al2S3 2. NaNO3 3. Ba (OH) 2

Who is responsible for developing a process to remove bacteria from milk

Which state of the West produces the widest varieties of fruits, vegetables, and nuts? A) California B) Colorado C) Wyoming D) Alaska

A chemical engineer for a fertilizer company is determining the most efficient way to produce ammonia. the engineer carries out the haber reaction under four different conditions.

What type of Bond exist in a molecule of hydrogen Iodide

Which common material is an example of a polyamide?

A particular brand of gasoline has a density of 0.737 g/mL at 25 ∘ C. How many grams of this gasoline would fill a 12.8 gal tank (1US gal=3.78L) ?