Based on the nebular Theory, which of these is a step in the formation of a new planetary system?

A) evaporation of water

B) nuclear fission of gases

C) repulsion of gaseous masses

D) change of gases into liquids

What is the molecular weight of a gas if a 12.0 g sample has a pressure of 836 mm Hg at 25.0°C in a 2.00 L flask? (R = 0.0821 L atm / mol K)

What is the ph of a solution of 0.700 m kh2po4, potassium dihydrogen phosphate?

For carbon monoxide poisoning, the treatment is administration of oxygen at high pressure. This increases the amount of oxyhemoglobin in the bloodstream. Using Le Chatelier's Principle, completely explain why this treatment is effective.

A student produces carbon dioxide gas by heating calcium carbonate in a flask. She collects the gas by bubbling it into a test tube inverted in water. After filling the test tube, the student measures the pressure of the test tube's contents as 100.

Why do scientist record observations during an experiment?

The equilibrium constant for the production of carbon dioxide from carbon monoxide and oxygen is kc=2*1011 this means that the reaction mixture at equilibrium is likely to consist of

Arrange these compounds in order of increasing standard molar entropy at 25°C: C3H8 (g), C2H4 (g), ZnS (s), and H2O (l).

A gas has a temperature of 14 degrees C and volume of 4.5 liters. If the temperature is raised to 29 degrees C and the pressure is not changed, what is the new volume of the gas? .

What groups of elements do not have a charge and why

How many grams of Br are in 2.0 moles of CaBr2?