Question 10 4 pts
The frequency of a given region of the electromagnetic spectrum is 3 x
1019 HZ. Note that the speed of light is 2.998 x 108 m/s. What is the
wavelength?
9.993 x 10^-12 meters
6.552 x 10^-5 meters
8.996 x 10^-16 meters
O 5.552 x 10^-12 meters

What element is in the lathanide family?

Which substance absorbs 58.16 kj of energy when 3.11 mol vaporizes? a)ch4 b)h2s c)co2 d)nacl

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.