Author Question: Dinitrogen tetroxide partially decomposes according to the following equilibrium: N2O4 (g) 2NO2 (g) ... (Read 77 times)

mia · **on:** Aug 27, 2018

Dinitrogen tetroxide partially decomposes according to the following equilibrium: N2O4 (g) 2NO2 (g)

A 1.000-L flask is charged with 9.20 10-3 mol of N2O4. At equilibrium, 5.98 10-3 mol of N2O4 remains. Keq for this reaction is ________.
A) 0.183
B) 0.197
C) 0.212
D) 6.94 10-3
E) 2.96 10-5

Question 2

Silicones are ________.

A) chains of alternating silicon and oxygen atoms with attached organic groups
B) three-dimensional covalent networks of SiO4 tetrahedra
C) three-dimensional covalent networks of silicon atoms
D) flat sheets of silicon atoms
E) flat sheets of silicon and hydrogen atoms