Chemistry, 12.05.2021 15:30 Brennen435
Spraying ethanol on your hand makes your hand feel cool. How much heat is absorbed in turning 3.00 grams of ethanol ( C2H5OH) from a liquid to a vapor? The molar heat of vaporization of ethanol is 38.6KJ/Mol
Answers: 2
Chemistry, 22.06.2019 16:00
He table below gives the atomic mass and relative abundance values for the three isotopes of element m. relative abundance (%) atomic mass (amu) 78.99 23.9850 10.00 24.9858 11.01 25.9826 what is the average atomic mass (in amu) of element m? 2.86 5.36 24.30 24.98
Answers: 2
Chemistry, 23.06.2019 13:30
How does water evaporating from a glass show that matter is made up of particles? a. the heat energy from the air causes the glass to fill up with water particles. b. the liquid water particles turn into water vapor that spreads in the air. c. the particles of the glass dissolve in water and cause it to evaporate. d. the tiny particles of the glass evaporate and seem to disappear.
Answers: 2
Chemistry, 24.06.2019 01:20
What would be the greatest difference in using an open ceramic coffee mug rather than an insulated mug with a lid as a calorimeter? increased evaporation of the water loss of gaseous reactants inability to contain liquids exchange of energy with the surroundings
Answers: 1
Chemistry, 24.06.2019 01:30
The ba(oh)2 dissociates as ba+2 + 2 oh-. h2so4 dissociates as 2 h+ + so4 -2. write a balanced equation for this reaction.
Answers: 2
Spraying ethanol on your hand makes your hand feel cool. How much heat is absorbed in turning 3.00 g...
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