How many grams of water (H2O) would you need to have the same number of molecules as 200 grams of ammonia (11.743 moles) ?

Describe the two known major natural mechanisms for converting atmospheric nitrogen to useable forms.

Match these questions with the right letter answer choice 1. Large loops of gases 2. Occurs when the layer of our atmosphere are energized 3. An electrically charged mixture of electrons and protons 4.

An example of why people may choose not to drink is: Family history Supporting the legal drinking age Don't need alcohol to have fun All of the above

Explain why the solutions of SbCl3 (aq) in our lab also contain HCl. Why would adding a few drops of this solution to 300 mL of water result in a foggy or cloudy appearance?

Give an example of a substance changing temperature and what happens to the motion of molecules as the temperature changes?

What is the concentration of a solution containing 1.11 g sugar (sucrose, C12H22O11, MW = 342.3 g/mol, d = 1.587 g/cm3) in 432 mL glycerine (C3H8O3, MW = 92.09 g/mol, d = 1.261 g/cm3) in molarity and molality.

What's the name of a wave moving along a line?

Does the energy in a solid increase or decrease when changing to a liquid?

Is iron a substance or mixture?

How can scientists study the composition of distant stars?