CHEM 121 EXAM 2 TESTBANK ACTUAL TEST PAPER QUESTIONS CORRECT ANSWERS GRADED A PLUS

CHEM 121 EXAM 2 TESTBANK ACTUAL TEST PAPER QUESTIONS CORRECT ANSWERS
GRADED A PLUS
CHEM 121 EXAM 2 Testbank Questions and
Answers Verified Solutions Latest Update 2026/2027

Question:
Solutions.

Answer:
Homogeneous mixtures of two or more pure substances



Question:
Solvent.

Answer:
is present in greatest abundance



Question:
solutes.

Answer:
all other substances in a solution



Question:
Molarity (M).

Answer:
moles solvent / liters solution



Question:
Concentration.

Answer:

,Designates the amount of solute dissolved in a particular quantity of solution.



Question:
Dilution Equation.

Answer:
M1V1=M2V2



Question:
3 Categories of Reactions.

Answer:
1. precipitation (ppt) rxns 2. Acid/base rxns 3. Oxidation-reduction rxns



Question:
Oxidation number.

Answer:
is a number assigned to an atom to indicate how many electrons it has



Question:
Alkali Metals are always.

Answer:
+1



Question:
Alkaline earth metals are always.

Answer:
+2

, Question:
Group VIIA us always.

Answer:
-1



Question:
Oil RiG.

Answer:
Oxidation = Electron Loss Reduction = Electron Gain



Question:
Oxidizing Agent.

Answer:
Causes lose of electron and gains it.



Question:
Reducing Agent.

Answer:
Causes something to gain electron and it loses it.



Question:
Arrhenius defined acids as substances that.

Answer:
increase the concentration of H+ when dissolved in water.