Due in 30 MINUTES! A single-replacement reaction of zinc and hydrochloric acid occurs.

Zn + 2HCl → ZnCl2 + H2
If 2.5 moles of HCl react with excess Zn, how many moles of H2 will be produced?

If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?

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?

Nuclear decay is the spontaneous decay of one element into a. an x-ray b. a ray of light c. another element