Quiz 4

Question 1

Molecular Equation

Answer 1

Shows all reactants and products as if they were undissociated.
i.e. 2KF + Sr(NO3)2 –> 2KNO3 + SrF2 (s)

Question 2

Total Ionic Equation

Answer 2

Shows dissociation into ions

i.e. 2K + 2F + Sr + 2NO3 –> 2K + 2NO3 + SrF2 (s)

Question 3

Spectator Ions

Answer 3

Ions that are not involved in the reaction, cancelled out from both sides.
i.e. K and NO3 on both sides cancel out

Question 4

Net Ionic Equation

Answer 4

Eliminates the spectator ions and only shows the actual chemical change.
i.e. Sr + 2F –> SrF2 (s)

Question 5

What is a precipitate reaction?

Answer 5

Two soluble ionic compounds that form a precipitate.

Question 6

How can you predict is a precipitate will form?

Answer 6

Note all of the ions present in the reaction; consider all possible cations/anions; use the solubility rules; the insoluble will form a precipitate

Question 7

Solubles

Answer 7

Low charged species with charges of +1 and -1
Group 1A metals
DO NOT FORM SOLIDS

Question 8

Insolubles

Answer 8

High charged species with charges of +2/-2 and +3/-3

FORM SOLIDS

Question 9

Acid

Answer 9

A substance that produces H+ ions when dissolved in H2O

i.e. HW –> H+ + X-

Question 10

Base

Answer 10

A substance that produces OH- ions when dissolved in H2O

MOH –> M+ + OH-

Question 11

Strong Acids/Bases =

Answer 11

Strong Electrolytes

Question 12

Weak Acids/Bases =

Answer 12

Weak Electrolytes

Question 13

Strong Electrolytes conduct…

Answer 13

Electricity very well

Question 14

Weak Electrolytes conduct…

Answer 14

Electricity very poorly