Which statement describes the VSEPR theory? A.
Electron pairs in the valence shell of an atom have a tendency to attract other nearby electron pairs.

B.
Electrons in the valence shell of an atom exert a repulsive force on other atoms while forming a chemical bond.

C.
Electron pairs in the valence shell of an atom exert a repulsive force on all other electron pairs in the valence shell of the atom.

D.
Electrons in the valence shell exert a repulsive force while completing their octet during the formation of chemical bond.

Construct the hypothetical phase diagram for metals a and b between room temperature (20c) and 700c, given the following information: * the melting temperature of metal a is 480c. • the maximum solubility of b in a is 4 wt% b, which occurs at 420c. • the solubility of b in a at room temperature is 0 wt% b. • one eutectic occurs at 420c and 18 wt% b–82 wt% a. • a second eutectic occurs at 475c and 42 wt% b–58 wt% a. • the intermetallic compound ab exists at a composition of 30 wt% b–70 wt% a, and melts congruently at 525c.• the melting temperature of metal b is 600c. • the maximum solubility of a in b is 13 wt% a, which occurs at 475c. • the solubility of a in b at room temperature is 3 wt% a.

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

What is produced from neutralization of an acid and a base? a. hydronium ions b. citric acid c. salt and water