Chemistry, 17.11.2020 16:50, richaeviney
A thermometer is removed from a beaker of boiling water and placed in a beaker of room temperature water. The
thermometer takes 15 seconds to reach a reading of 25°C. The same thermometer is returned to the boiling
water for several minutes. It is then placed under a tap of running water at room temperature. The thermometer
takes only 10 seconds to reach a reading of 25°C.
What conclusion could you make about conduction and convection based on these observations?
A)
Conduction is a more efficient method of heat transfer.
B)
Convection is a more efficient method of heat transfer.
No valid conclusion is suggested by these observations.
D)
Conduction and convection are equally efficient methods of heat transfer.
Answers: 3
Chemistry, 22.06.2019 04:00, kichensides
Asample of aluminum foil contains 8.60 Ă— 1023 atoms. what is the mass of the foil?
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Chemistry, 22.06.2019 06:00, palomaresmitchelle
There are 6.022, 104 atoms of hg in 1 mole of hg the number of atoms in 45 moles of hg can be found by multiplying 4.5 by 6.022, 102 which is the number of atoms in 4.5 moles of hg, correctly written in scientific notation with the correct number of significant figures? 0 21,109 0 21,100 271, 1024 27.099, 100 mark this and retum save and exit submit
Answers: 1
Chemistry, 23.06.2019 04:30, Har13526574
Two liquids are poured into a beaker. after a few seconds, the beaker becomes warm. which of the following best describes this reaction? a. an exothermic reaction b. a decomposition reaction c. an endothermic reaction d. a single-displacement reaction
Answers: 1
A thermometer is removed from a beaker of boiling water and placed in a beaker of room temperature w...
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