Perform the following mathematical operation, and
report the answer to the correct
number of significant figures.
1.987/3.46 = [?]

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?

Why do oxygen have a strong attractive force for electrons

Silver reacts with oxygen to produce silver oxide. (write balanced chemical equation and identify type of chemical reaction.)