CHEM 120-CHAMBERLAIN LAB FINAL
EXAM STUDY GUIDE 2026/2027
COMPLETE QUESTIONS WITH
VERIFIED CORRECT ANSWERS ||
100% GUARANTEED PASS
<NEWEST VERSION>
1. Observation - ANSWER ✔ observe what happens in an experiment, records
the observations and collects data.
2. Hypothesis - ANSWER ✔ A testable prediction, often implied by a theory
3. Expirement - ANSWER ✔ a procedure that is used to test a hypothesis
4. Results - ANSWER ✔ the outcome of an experiment
5. Theory - ANSWER ✔ Explaination of "why" based on evidence
6. Scientific Method - ANSWER ✔ Consist of observation, hypothesis,
experimental design, results, and theory
7. independent variable - ANSWER ✔ variable that is manipulated
,8. dependent variable - ANSWER ✔ The measurable effect, outcome, or
response
9. Theory - ANSWER ✔ Explains why you got the results.
10.Protons - ANSWER ✔ positively charged particles in the nucleus
11.Neutron - ANSWER ✔ no charge, found in nucleus
12.Electron - ANSWER ✔ negatively charged particle outside the nucleus
13.atomic number - ANSWER ✔ the number of protons in the nucleus of an
atom
14.Mass number - ANSWER ✔ the total number of protons and neutrons in the
nucleus of an atom
15.Ions - ANSWER ✔ positively and negatively charged atoms
16.Cation - ANSWER ✔ A positively charged ion - metal
17.Anion - ANSWER ✔ A negatively charged ion – nonmetal
18.If a student accidentally adds deionized water past the calibrated mark on the
volumetric flask, he can just dump the excess solution until the volume is
right at the mark. - ANSWER ✔ false, start over and make a new solution
,19.Consider the steps involved in preparing a dilute solution from a stock
solution. Arrange them in order from first (Step 1) to last (Step 4). -
ANSWER ✔ Obtain a flask that is thoroughly cleaned and dried.
Add the desired amount of stock solution.
Add deionized water until the volume reaches the mark on the flask.
Cap the flask and invert several times to thoroughly mix the solution.
20.Name the waste disposal container for Cu2+ - ANSWER ✔ heavy metal
21.Name the waste disposal container for cyclohexane - ANSWER ✔ organic
22.Name the waste disposal container for HCl - ANSWER ✔ sink
23.The function of the air control valve in a Bunsen burner.. - ANSWER ✔
controls air flow
24.Blue litmus paper turns______ in HCl - ANSWER ✔ red
25.Dilute sodium hydroxide is found in a ____ bottle - ANSWER ✔ plastic
26.What is the molecular geometry around C in formaldehyde (HCOH)?
What is the bond angle of H-C-O? - ANSWER ✔ trigonal planar
120 degrees
, 27.The energy of 1 photon is 1.0 x 10^-19J, what is the energy of one mole of
these photons? - ANSWER ✔ (1.0 x 10^-19)(6.02 x 10^23)= 6.02 x 10^4
28.Why are boiling chips used in the lab? - ANSWER ✔ To prevent over
boiling.
29.Name one acid base indicator that was used in the lab. - ANSWER ✔ litmus
paper
30.Our lab balances read to the nearest ______g. - ANSWER ✔ 0.001
31.A 25 mL graduated cylinder in our lab is read to the nearest _____ mL. -
ANSWER ✔ 0.1
32.Describe a "cool" flame. - ANSWER ✔ blue color, not very hot.
33.Draw the Lewis structure of 1-propanol and tell if H-bonding is possible. -
ANSWER ✔ Yes, h-bonding is possible.
CH3-CH2-CH2-OH
34.Name active ingredients in Alka-Seltzer - ANSWER ✔ sodium bicarbonate
(NaHCo3)
35.The formula of the gas that is formed when Alka-Seltzer tablet placed in
H20? - ANSWER ✔ CO2
EXAM STUDY GUIDE 2026/2027
COMPLETE QUESTIONS WITH
VERIFIED CORRECT ANSWERS ||
100% GUARANTEED PASS
<NEWEST VERSION>
1. Observation - ANSWER ✔ observe what happens in an experiment, records
the observations and collects data.
2. Hypothesis - ANSWER ✔ A testable prediction, often implied by a theory
3. Expirement - ANSWER ✔ a procedure that is used to test a hypothesis
4. Results - ANSWER ✔ the outcome of an experiment
5. Theory - ANSWER ✔ Explaination of "why" based on evidence
6. Scientific Method - ANSWER ✔ Consist of observation, hypothesis,
experimental design, results, and theory
7. independent variable - ANSWER ✔ variable that is manipulated
,8. dependent variable - ANSWER ✔ The measurable effect, outcome, or
response
9. Theory - ANSWER ✔ Explains why you got the results.
10.Protons - ANSWER ✔ positively charged particles in the nucleus
11.Neutron - ANSWER ✔ no charge, found in nucleus
12.Electron - ANSWER ✔ negatively charged particle outside the nucleus
13.atomic number - ANSWER ✔ the number of protons in the nucleus of an
atom
14.Mass number - ANSWER ✔ the total number of protons and neutrons in the
nucleus of an atom
15.Ions - ANSWER ✔ positively and negatively charged atoms
16.Cation - ANSWER ✔ A positively charged ion - metal
17.Anion - ANSWER ✔ A negatively charged ion – nonmetal
18.If a student accidentally adds deionized water past the calibrated mark on the
volumetric flask, he can just dump the excess solution until the volume is
right at the mark. - ANSWER ✔ false, start over and make a new solution
,19.Consider the steps involved in preparing a dilute solution from a stock
solution. Arrange them in order from first (Step 1) to last (Step 4). -
ANSWER ✔ Obtain a flask that is thoroughly cleaned and dried.
Add the desired amount of stock solution.
Add deionized water until the volume reaches the mark on the flask.
Cap the flask and invert several times to thoroughly mix the solution.
20.Name the waste disposal container for Cu2+ - ANSWER ✔ heavy metal
21.Name the waste disposal container for cyclohexane - ANSWER ✔ organic
22.Name the waste disposal container for HCl - ANSWER ✔ sink
23.The function of the air control valve in a Bunsen burner.. - ANSWER ✔
controls air flow
24.Blue litmus paper turns______ in HCl - ANSWER ✔ red
25.Dilute sodium hydroxide is found in a ____ bottle - ANSWER ✔ plastic
26.What is the molecular geometry around C in formaldehyde (HCOH)?
What is the bond angle of H-C-O? - ANSWER ✔ trigonal planar
120 degrees
, 27.The energy of 1 photon is 1.0 x 10^-19J, what is the energy of one mole of
these photons? - ANSWER ✔ (1.0 x 10^-19)(6.02 x 10^23)= 6.02 x 10^4
28.Why are boiling chips used in the lab? - ANSWER ✔ To prevent over
boiling.
29.Name one acid base indicator that was used in the lab. - ANSWER ✔ litmus
paper
30.Our lab balances read to the nearest ______g. - ANSWER ✔ 0.001
31.A 25 mL graduated cylinder in our lab is read to the nearest _____ mL. -
ANSWER ✔ 0.1
32.Describe a "cool" flame. - ANSWER ✔ blue color, not very hot.
33.Draw the Lewis structure of 1-propanol and tell if H-bonding is possible. -
ANSWER ✔ Yes, h-bonding is possible.
CH3-CH2-CH2-OH
34.Name active ingredients in Alka-Seltzer - ANSWER ✔ sodium bicarbonate
(NaHCo3)
35.The formula of the gas that is formed when Alka-Seltzer tablet placed in
H20? - ANSWER ✔ CO2
