Chemistry, 05.10.2019 00:30, AlexRavenwood127

Asubstance has a melting point of 80 °c. which of the following is true for the substance?
-when the substance is heated, its temperature will rise above 80 °c after 50% of the liquid has changed to vapors.
-when the substance is heated, its temperature will rise above 80 °c after 100% of the liquid has changed to vapors.
- when the substance is cooled, its temperature will fall below 80 °c after 50% of the liquid has changed to solid.
-when the substance is cooled, its temperature will fall below 80 °c after 100% of the liquid has changed to solid.

Answers: 2

Show answers

Other questions on the subject: Chemistry

Chemistry, 21.06.2019 12:50, adrian08022

Use the standard enthalpies of formation for the reactants and products to solve for the δhrxn for the following reaction. (the δhf of c2h4 is 52.26 kj/mol, co2 is -393.509 kj/mol, and h2o is -241.818 kj.) c2h4 (g) + 3o2(g) 2co2 (g) + 2h2o(g) δhrxn = the reaction is .

Answers: 3

continue

Chemistry, 21.06.2019 17:10, shafferakr6

There are 6.022 x 10^23 atoms of hg in 1 mole of hg. the number of atoms in 4.5 moles of hg can be found by multiplying 4.5 by 6.022 x 10^23 a. 2.7 x 10^24 b. 27 x 10^23 c. 2.71 x10^24 d. 27.099 x 10^23

Answers: 3

continue

Chemistry, 21.06.2019 23:00, cbrewer37

Select the correct answer. given: 2libr + ba → babr2 + 2li in this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced? a. 1.18 mol b. 2.37 mol c. 4.73 mol d. 16.4 mol e. 32.9 mol

Answers: 2

continue

Chemistry, 22.06.2019 02:20, kristieroth1

Compared with the freezing-point depression of a 0.01 m c6h12o6 solution, the freezing-point depression of a 0.01 m nacl solution is

Answers: 1

continue

Do you know the correct answer?

Asubstance has a melting point of 80 °c. which of the following is true for the substance?
-w...