Select all of the following choices that would be a nonconducting substance or
(all dissolved in water)
-sucrose c12h22o11
-cacl2
-bef2
-baf2
-distilled water
*pick more than one*

After cloud droplets form, what must happen to them for precipitation to occur?

The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.

Ablock of aluminum is dropped into a graduated cylinder with an initial volume of water at 75ml and the volumes rises to 90ml. if the block has a mass of 40.5 g what is its density ?