Mass of crucible and product (after 2nd heating)
= 18.35 g
The reaction that occurs by heating the silver oxide produces both silver
metal and oxygen gas. The type of reaction that occurs is called
(A) neutralization
(B) combustion
(C) redox
(D) synthesis
(E) double replacement
The data from this experiment can be used
(A) to find the activity of silver in silver oxide
(B) to find the percent composition of silver oxide
(C) to verify the Law of Multiple Proportions
(D) to verify the Second Law of Thermodynamics
(E) to prove that silver is a malleable metal
The number of moles of oxygen released from the silver oxide after two
rounds of heating is
(A) 0.020 mol
(B) 0.10 mol
(C) 0.32 mol
(D) 1.0 mol
(E) 3.2 mol
The purpose of the second heating is to
(A) ensure that all of the silver is removed from the crucible
(B) melt the silver
(C) ensure that all of the oxygen reacts with the silver
(D) ensure that all of the silver reacts with the oxygen in the air
(E) ensure that all of the oxygen is removed from the silver oxide
To prove that oxygen is a product in this reaction, which common laboratory
test could be used?
(A) The “pop” test
(B) The “limewater” test
(C) The “cobalt chloride” test
(D) The “glowing splint” test
(E) The “oil drop” test
When HCl fumes and NH 3 fumes are introduced into opposite ends of a long,
dry glass tube, a white ring forms in the tube. Which statement explains this