Chemistry, 31.03.2021 04:20, naterasjen6531
Which of the following statements apply to the general experimental procedure for determining the heat of reaction as described in the experiment reading? One or more may be correct and you will receive negative points for incorrect answers.
A. Measurements of the temperature of the solution in the calorimeter should be taken at regular intervals for several minutes before the reactant is added.
B. The solution in the calorimeter should not be stired during the experiment because stirring wil slow the reaction
C. The solution calorimeter does not need to be rinsed or dried between runs because the reaction solutions are all aqueous.
D. Temperature readings need to be taken at regular intervals after the highest temperature reading is observed to determine the rate of heat loss from the calorimeter.
Answers: 3
Chemistry, 21.06.2019 18:00, Queenquestion5967
When the following equation is balanced using the smallest possible integers, what is the coefficent of oxygen gas? c7h16o(g) + o2(g) β co2(g) + h2o(g) -1 -5 -8 -16 -21
Answers: 3
Chemistry, 22.06.2019 21:20, paatnguyyen
One way in which the useful metal copper is produced is by dissolving the mineral azurite, which contains copper(ii) carbonate, in concentrated sulfuric acid. the sulfuric acid reacts with the copper(ii) carbonate to produce a blue solution of copper(ii) sulfate. scrap iron is then added to this solution, and pure copper metal precipitates out because of the following chemical reaction: (s) (aq) (s) (aq) suppose an industrial quality-control chemist analyzes a sample from a copper processing plant in the following way. he adds powdered iron to a copper(ii) sulfate sample from the plant until no more copper will precipitate. he then washes, dries, and weighs the precipitate, and finds that it has a mass of .
Answers: 2
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