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This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.

How many moles of oxygen gas are produced from the decomposition of six moles of potassium

Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?