Chemistry, 23.10.2020 06:01 andybiersack154
An experiment was carried out to observe whether temperature affects rate of diffusion. Beaker A had ice water and beaker B had hot water. Into each beaker 2 drops of food colouring was added and time was started simultaneously. In which beaker will the rate be fasted
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Chemistry, 23.06.2019 05:30
Find the midpoint of a segment with endpoints of 4-3i and -2+7i
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Chemistry, 23.06.2019 07:10
1) a light bulb takes in 30 of energy per second. it transfers 3j as use energy. calculate the efficiency. second. it transfers 3j as useful light energy and 27j as heat energy. calculate the efficiency
Answers: 1
Chemistry, 23.06.2019 07:30
In a laboratory determination of the atomic weight of tin, a sample of tin is weighed in a crucible. nitric acid is added, and the reaction proceeds to give a hydrated tin(iv)oxide plus no2and h2o. the hydrated tin(iv)oxide is then heated strongly and reacts as follows: sno2.xh2o(s)sno2(s)+ xh2o(g)the sno2is finally cooled and weighed in the crucible. explain the effect on the calculated atomic weight of tin that would result from each of the following experimental errors: (a)considerable spattering occurs when the nitric acid is added to the tin.(b)the hydrated tin(iv)oxide is not heated sufficiently to change it completely to tin oxide.
Answers: 2
Chemistry, 23.06.2019 13:00
Sort these isotopes by whether they are most likely to undergo fusion or fission. hydrogen-3, uranium-233, plutonium-239, hydrogen-1, helium-3, plutonium-241
Answers: 2
An experiment was carried out to observe whether temperature affects rate of diffusion. Beaker A had...
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