If nitrogen gas is collected over water at 20 o C and the total pressure of the gas in the collection vessel is 200 kPa, what is the pressure of dry nitrogen gas?

A sample of ideal gas at room temperature occupies a volume of 12.0 L at a pressure of 392 torr. if the pressure changes to 1960 torr, with no change in temperature or moles of gas, what is the new volume, V2?

How many moles of Atoms are in 4g of sulphur

The atomic mass of an atom can be found by A. adding the number of protons and number of neutrons in the atom. B. adding the number of protons and number of electrons in the atom. C. adding the number of neutrons and number of electrons in the atom.

What happens when a hydrate is heated

What are some unique properties about ice that differ from liquid water to water vapor

Alka-Seltzer is a solid mixture of two substances, sodium bicarbonate (NaHCO3) and citric acid (H3C6H5O7). The substances react to form water, carbon dioxide (CO2), and Na3C6H5O7.

Four properties of water are listed. 1. It is colorless and odorless in its pure form. 2. It reacts with metals to form metal hydroxide and hydrogen gas. 3. When heated to 100 °C, water evaporates. 4. It decomposes to form hydrogen and oxygen.

Water is A. Acidic B. Basic C. Neutral

What variables affect the acceleration of an object and in what manner do they affect the acceleration?

How do valence electrons relate to the chemical reactions of an element?