Author Question: Which of the following reactions will occur spontaneously as written? A) Sn4+ (aq) + Fe3+ (aq) ... (Read 240 times)

drink · **on:** Aug 27, 2018

Which of the following reactions will occur spontaneously as written?

A) Sn4+ (aq) + Fe3+ (aq) Sn2+ (aq) + Fe2+ (aq)
B) 3Fe (s) + 2Cr3+ (aq) 2Cr (s) + 3Fe2+ (aq)
C) Sn4+ (aq) + Fe2+ (aq) Sn2+ (aq) + Fe (s)
D) 3Sn4+ (aq) + 2Cr (s) 2Cr3+ (aq) + 3Sn2+ (aq)
E) 3Fe2+ (aq) Fe (s) + 2Fe3+ (aq)

Question 2

When 0.250 mol of CH4(g) reacts with excess Cl2(g) at constant pressure according to the chemical equation shown below, 177 kJ of heat are released. Calculate the value of H for this reaction, as written.

2 CH4(g) + 3 Cl2(g) 2 CHCl3(l) + 3 H2(g) H = ? A) -1420 kJ
B) -708 kJ
C) +708 kJ
D) +1420 kJ

Question 3

Glass is ________ whereas quartz is ________.

A) hard, soft
B) crystalline, amorphous
C) amorphous, crystalline
D) pure SiO2, a mixture of SiO2 and carbonates
E) breakable, not breakable

irishcancer18 · **Reply #1 on:** Aug 27, 2018

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