Multiple Choice
Which chemical equation describes a hydrogen displacement reaction?
A) 2C2H6(g) + 7O2(g) → 4CO2(g) + 6H2O(l)
B) 2KBr(aq) + Cl2(g) → 2KCl(aq) + Br2(aq)
C) N2(g) + 3H2(g) → 2NH3(g)
D) CaBr2(aq) + H2SO4(aq) → CaSO4(s) + 2HBr(aq)
E) 2Al(s) + 3H2SO4(aq) → Al2(SO4) 3(aq) + 3H2(g)
Correct Answer:

Verified
Correct Answer:
Verified
Q13: How many moles of H<sup>+</sup>(aq) ions are
Q37: The distinguishing characteristic of all nonelectrolyte solutions
Q50: Which of the following is a strong
Q76: Which substance is present in the smallest
Q118: Which is a strong acid?<br>A) Ba(OH)<sub>2</sub><br>B) H<sub>3</sub>PO<sub>4</sub><br>C)
Q119: What is oxidized in the following reaction?
Q121: How many sodium ions are present in
Q122: Zinc dissolves in hydrochloric acid to yield
Q123: Which statement is false concerning oxidation numbers?<br>A)
Q125: The oxidation number for oxygen in O<sub>2</sub>