3120kJ/mol of heat is released in the reaction of benzene (C6H6)  with oxygen gas.  Is this reaction exothermic or endothermic?

How many grams of fluorine (F2) are required to produce 40.0 grams of FeF3 from the reaction shown?               2 Fe + 3F2 → 2 FeF3

In the following reaction which species is being oxidized and which is being reduced? 2 Cr (s) + 3 Cl2 (g) → 2 CrCl3 (s)

How many grams of CO2 will be produced when 9.00 grams of Na2SO4 react according to the balanced reaction shown?               Na2SO4 + 2 C → Na2S + 2 CO2

Reaction rates are determined by all of the following factors except

The position of the equilibrium for a system where K = 4.6 × 10-15 can be described as being favored to _____; the concentration of products is relatively _____.

For the reaction of zinc with silver nitrate,  2.9 g of silver was produced.  The reaction should have theoretically produced 3.5 g.  What is the percent yield?

In a precipitation reaction the insoluble product can be identified by the symbol ________.

Write out and balance the equation for liquid benzene (C6H6) reacting with oxygen to form carbon dioxide and water vapor in a fire.

S + O2 → SO2            ΔH = -70.8 kcal Based on the reaction shown, which statement is true?