A. 24.5 g of ammonia NH3 = how many moles of ammonia?

. b How many molecules of ammonia is that from 22. a.?

What is the Lewis dot structure for potassium sulfide?

A gold atom is a sphere with a diameter of 272 pm and a mass of 3.27 x 10-13 ng. Calculate the density of one gold atom (in g/cm3). Note the Vsphere = 4/3 π r3.

Which situation is an example of heat transfer by radiation? Question 1 options: An ice cube melts while being held in the hand. Hot soup rises to the top of the bowl while cooler soup sinks to the bottom.

During dry whether, clothes made of synthetic often stick to the skin. Which type of force is responsible for this

Why are most solid ionic compounds electrically nonconductive, whereas aqueous solutions of ionic compounds are good conductors? Would you expect a liquid (molten) ionic compound to be electrically conductive or nonconductive? Explain

One of the signs of a chemical reaction is taking place

If force is held constant as surface area decreases pressure

Which group contains elements composed of diatomic molecules at stp

Some types of bases are used to make soap. true or false

What happens when a solid compound dissolves in water?