Chemistry, 26.11.2019 22:31 Anikarenee
Suppose that a 100 ml sample of ideal gas is held in a piston-cylinder apparatus. its volume could be increased to 200 ml by :
a. increasing the temperature from 25oc to 50oc at constant pressure.
b. increasing the pressure from 1.00 atm to 2.00 atm at constant temperature.
c. reducing the temperature from 400k to 200 k
d. reducing the pressure from 760 torr to 600 torr while increasing the temperature from 25oc to 100oc
e. reducing the pressure from 608 torr to 0.40 atm at constant temperature.
Answers: 1
Chemistry, 21.06.2019 22:00, toledanomariap43bxm
Fission of uranium-235 products energy and a. isotopes of smaller elements b. isotopes of larger elements c. lighter isotopes of uranium d. heavier isotopes of uranium
Answers: 3
Chemistry, 22.06.2019 18:30, bibiansolis
The table lists the lattice energies of some compounds. compoundlattice energy (kj/mol)lif –1,036licl –853naf –923kf –821nacl –786which statement about crystal lattice energy is best supported by the information in the table? the lattice energy increases as cations get smaller, as shown by lif and kf. the lattice energy increases as the cations get larger, as shown by lif and licl. the lattice energy decreases as cations get smaller, as shown by nacl and naf. the lattice energy decreases as the cations get smaller, as shown by naf and kf.
Answers: 3
Chemistry, 22.06.2019 22:30, teagan56
Gusing the milligrams of ascorbic acid you entered above, the ratio of total sample volume to aliquot volume, and the total milligrams of the vitamin c tablet that you dissolved, calculate the mass of ascorbic acid in the vitamin c tablet for each trial. do this by scaling up to find the amount (mg) of ascorbic acid in your 250 ml flask. enter your calculated mass of ascorbic acid in the vitamin c tablet, for each trial. be sure to enter your calculated mass in the corresponding order that you entered your milligrams of ascorbic acid. the milligrams of ascorbic acid you entered for entry #1 previously should correspond to the mass of ascorbic acid that you enter for entry #1 here.
Answers: 1
Suppose that a 100 ml sample of ideal gas is held in a piston-cylinder apparatus. its volume could b...
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