What is the first solution described in the lab?

Laboratory Experiment Procedures and Safety

Interactive Video
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Chemistry, Science, Biology
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9th - 10th Grade
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Hard

Patricia Brown
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hydrochloric acid
Sodium hydroxide
Calcium chloride
Potassium chromate
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many drops of each solution should be used in the well plate?
4-5 drops
3-4 drops
2-3 drops
1-2 drops
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What should you do if the pipette method does not work?
Skip the reaction
Use a different well plate
Add more solution
Use a stirring stick
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of a blank space in the reaction table?
Indicates a color change
Indicates a gas release
Indicates a strong reaction
Indicates no reaction
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the oxidation change mentioned in the lab?
NaOH to NaCl
HCl to Cl2
SO4 to SO3
CrO4 to C2O7
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many points are awarded for correctly identifying the unknown solution?
20 points
5 points
10 points
15 points
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What safety precaution is mentioned regarding skin contact?
Wash skin thoroughly
Avoid inhalation
Wear goggles
Use a face mask
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