manuel observes a chemical reaction between one atom of silicone and two atoms of oxygen which answer choice correctly list the chemical formula of the compound produced by the reaction?

si1+o2-

si1o2

sio^2

sio2

A50.0g sample of liquid water at 0.0 c ends up as ice at -20.0 c. how much energy is involved in this change?

How many moles of potassium hydroxide are needed to completely react with 2.94 moles of aluminum sulfate

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?