g In a given process, heat is added to a pure substance at constant pressure (with no other energy transfers to or from the substance). Which of the following can be said about the temperature of the pure substance during this process. (select all answers that are possible; more than one may be correct) Select one or more: a. The temperature of the substance can increase. b. The temperature of the substance can stay the same. c. The temperature of the substance can decrease.

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.

How many moles are in 7.2 x 10^23 carbon molecules? (*round to the nearest hundredth and include the unit "mol c" after your number) question 6 options:

Is 9 correct? and can someone me with 10? it’s due tomorrow, you