<span>The answer is C. The north post of one magnet pulls in the south shaft of a moment magnet, while the north shaft of one magnet repulses the other magnet's north shaft. So we have the normal saying: like shafts repulse, dissimilar to posts draw in. A magnet makes an undetectable region of attraction surrounding it called an attractive field.</span>
Answer: C. The temperature decreases because the average kinetic energy decreases.
Explanation:
Kinetic energy is the energy possessed by an object by virtue of its motion.
Average kinetic energy is defined as the average of the kinetic energies of all the particles present in a system. It is given by the equation:
From above, it is visible that kinetic energy is directly related to the temperature of the system. So, if temperature is more, average kinetic energy of the system is more and thus molecules will move faster.
When temperature is decreased, kinetic energy decreases, and the molecules swill move slowly.
500 grams Calcium Nitrate to mol= 3.04715
<span>Measuring with a graduated cylinder is complicated somewhat by a meniscus. A meniscus is the curvature of the surface of the water. Water "sticks" to the walls of the graduated cylinder, but only on the sides and not the middle.
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