Chemistry, 17.07.2020 19:01 elijahworley
A liquid takes 10.14 x 10^6 J of energy to boil 28.47 kg at 298 K. Using the latent heats of vaporization of 5 liquids below, determine what the substance is. Acetone: 538,900 J kg-1 Ammonia: 1,371,000 J kg-1 Propane: 356,000 J kg-1 Methane: 480,600 J kg-1 Ethanol: 841,000 J kg-1 A. Ammonia B. Ethanol C. Acetone D. Propane
Answers: 2
Chemistry, 21.06.2019 14:30
Alculate the concentration of h3o⁺in a solution that contains 5.5 × 10-5m oh⁻at 25°c. identify the solution as acidic, basic, or neutral.a) 1.8 × 10-10m, basicb) 1.8 × 10-10m, acidicc) 5.5 × 10-10m, neutrald) 9.2 × 10-1m, acidice) 9.2 × 10-1m, basic
Answers: 1
Chemistry, 22.06.2019 08:40
Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.
Answers: 2
A liquid takes 10.14 x 10^6 J of energy to boil 28.47 kg at 298 K. Using the latent heats of vaporiz...
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