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.
The following statements apply to the general experimental procedure for determining the heat of reaction:
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 stirred during the experiment because stirring will slow the reaction
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.
En general, la adicción se considera una enfermedad crónica que ocurre tras el consumo continuado de una droga durante un período de tiempo relativamente largo. Por tanto, el principal factor desencadenante de la enfermedad es el consumo mismo de la droga.Sep 16, 2019
The basic steps of the scientific method are: 1) make an observation that describes a problem, 2) create a hypothesis, 3) test the hypothesis, and 4) draw conclusions and refine the hypothesis.
You have to ask a question or solve a problem before you can develop a prediction/hypothesis, conduct an experiment or even make a conclusion. The question comes first.