Laboratory Experiment Procedures and Safety

Laboratory Experiment Procedures and Safety

Assessment

Interactive Video

Chemistry, Science, Biology

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial provides a comprehensive guide to conducting a chemical reactions lab. It begins with an introduction to the lab setup and instructions for identifying chemical reactions using a kit. Students are guided through mixing solutions, recording observations, and balancing chemical equations. The tutorial emphasizes the importance of safety and liability, highlighting the need for safety data sheets. Students are tasked with identifying unknown solutions, with points awarded for correct identification and description. The video concludes with final instructions and a summary of the lab process.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first solution described in the lab?

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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