Nitric acid has the formula HNO3. If there are 3.55x10^23 atoms of O in the sample, how many moles of nitric acid are there?

Consider the four elements above. which one of these elements will combine with oxygen in a 1: 1 ratio?

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?

How does the attraction between particles affect the ability of a solvent to dissolve in a substance