Chemistry, 13.03.2020 16:13, firefox1fan
A 25.0 gram piece of iron at 398 K is placed in a Styrofoam coffee cup containing 25.0 mL of water at 298 K. Assuming no heat is lost to the cup or surroundings, what will be the final temperature of the water?
Answers: 2
Chemistry, 21.06.2019 14:00, yselahernandez02
Can you reduce your impairment by drinking coffee or cold showers? true or false?
Answers: 3
Chemistry, 22.06.2019 08:00, stephstewart1209
Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.
Answers: 2
Chemistry, 22.06.2019 10:30, perezanthony2403
Which describes fat? a: a carbohydrate that produces energy b: a nucleic acid that directs cell function c: a lipid that stores energy d: a protein that speeds up a chemical reaction
Answers: 1
Chemistry, 22.06.2019 11:00, daniel1480
Problem page combustion of hydrocarbons such as pentane ( c5 h12 ) produces carbon dioxide, a "greenhouse gas." greenhouse gases in the earth's atmosphere can trap the sun's heat, raising the average temperature of the earth. for this reason there has been a great deal of international discussion about whether to regulate the production of carbon dioxide.(a) write a balanced chemical equation, including physical state symbols, for the combustion of liquid pentane into gaseous carbon dioxide and gaseous water. (b) suppose 0.350 kg of pentane are burned in air at a pressure of exactly 1 atm and a temperature of 20.0 degree c. calculate the volume of carbon dioxide gas that is produced. be sure your answer has the correct number of significant digits.
Answers: 2
A 25.0 gram piece of iron at 398 K is placed in a Styrofoam coffee cup containing 25.0 mL of water a...
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