Is The number of moles of a gas equal to the mass divided by the molar mass true or false?

Type of gingival infection is characterized by necrosis of gingival papillae?

For the equilibrium PCl5 (g) PCl3 (g) + Cl2 (g), Kc = 2.0 * 101 at 240°C. If pure PCl5 is placed in a 1.00-L container and allowed to come to equilibrium, and the equilibrium concentration of PCl3 (g) is 0.

Blank occurs when water molecules at the surface of a pool have enough kinetic energy that the attractive forces holding them to the liquid can be overcome

How many molecules is 2.03 moles of Al (SO4) 3?

If 1500 white blood cells are lined up side by side they would form a row 1.0 inch long what is the average diameter in micrometers of a single white blood cell? (1 inch=2.54 cm)

Time (s) [NO2] (mol/L) 0 0.500 1,200 0.444 3,000 0.381 4,500 0.340 9,000 0.250 (Note: The rate law only depends on the concentration of NO2.) Consider the reaction NO2 (g) + CO (g) → NO (g) + CO2 (g).

Building a dam to produce hydro-electricity power is one way to take advantage of a common renewable resource. This produces much less pollution than a coal burning plant. However, building dams is not a perfect solution.

The goose has a mass of 22.6 lb (pounds) and is flying at 7.90 miles/h (miles per hour). What is the kinetic energy of the goose in joules?

How can I balance this chemical equations? Aluminum and hydrochloric acid react to form aluminum chloride and hydrogen gas.?

Convert 8.05 moles of magnesium carbonate to formula units.