College Chem Ch. 4

cations are attracted to …

oxygen of h2o

anions are attracted to ….

hydrogen of water

hydration

the process of oppositely charged particles being attracted one another and the salt breaking apart

strong electrolytes

has lots of ions so, the salt breaks down completely

weak electrolytes

some salts dissolve

non electrolytes

solids do not break down into ions

molarity

moles of solute/ liters of solution

AAA

Always Add Acid

Does water carry an electrical current

distilled no - tap yes

what are the three types of reactions

precipitate, redox, and acid-base

what is a precipitate?

an insoluble solid that forms and separates from a liquid solution during a chemical reaction

molecular equation

normal average equation

complete equation

all ions are separated and charges are shown

net ion equation

only shows the ions involved in the formation of the precipitate

what does it mean if water is electronegative or polar?

its oxygen atom pulls shared electrons closer to itself than its hydrogen atoms do, and it is polar because this uneven pull creates a partial negative charge on the oxygen side and partial positive charges on the hydrogen side

polar

electrons are not shared equally

dissolution

to take a solution apart

non electrolytes are …

anything with our OH

bases always end with …

OH