Answers evaluated for:dave@brooks

Question 19
the hydrocarbon hexane is burned in excess oxygen
C6H14 + O2 ---> CO2 + H2O
Your answer: C6H14 + O2 --> CO2 + H2O
Points Earned This Question: 3
The formulas you have entered for the reactants appear to be correct. The formulas you have entered for the products appear to be correct.


Question 22
dilute hydrochloric acid is added to a solution of diamminesilver(I) nitrate
Ag(NH3)2+ + H+ + Cl- ---> AgCl + NH4+
Your answer: Ag(NH3)2+ + H+ + Cl- --> AgCl + NH4+
Points Earned This Question: 3
The formulas you have entered for the reactants appear to be correct. The formulas you have entered for the products appear to be correct.


Question 46
a sample of pure 2-butene is treated with hydrogen bromide gas
C4H8 + HBr ---> C4H9Br
Your answer: No responses sent.
Points Earned This Question: 0
You have not entered the formula(s) for any reactant(s). You have not entered the formula(s) for any product(s).


Question 53
a solution of sodium hydroxide is added to a solution of sodium dihydrogen phosphate until the same number of moles of each compound had been added
H2PO4- + OH- ---> HPO42- + H2O
Your answer: No responses sent.
Points Earned This Question: 0
You have not entered the formula(s) for any reactant(s). You have not entered the formula(s) for any product(s).


Question 55
liquid bromine is added to a solution of potassium iodide
Br2 + I- ---> Br- + I2
In excess I- the I2 forms I3-.
Your answer: No responses sent.
Points Earned This Question: 0
You have not entered the formula(s) for any reactant(s). You have not entered the formula(s) for any product(s).


Question 56
an excess of ammonia gas is bubbled through a solution saturated with silver chloride
Ag+ + NH3 ---> Ag(NH3)2+
Your answer: No responses sent.
Points Earned This Question: 0
You have not entered the formula(s) for any reactant(s). You have not entered the formula(s) for any product(s).


Question 106
hydrogen gas is passed over hot iron(III) oxide.
Fe2O3 + H2 ---> Fe + H2O
Your answer: No responses sent.
Points Earned This Question: 0
You have not entered the formula(s) for any reactant(s). You have not entered the formula(s) for any product(s).


Question 149
samples of boron trichloride gas and ammonia gas are mixed
BCl3 + NH3 ---> NH3BCl3
Your answer: No responses sent.
Points Earned This Question: 0
You have not entered the formula(s) for any reactant(s). You have not entered the formula(s) for any product(s).


Total Points Earned: 6/24 maximum. Remember, the first five answers are scored on the actual AP Chem test, and the maxium points = 15.

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