Stoichiometry and Chemical Reactions

Stoichiometry and Chemical Reactions

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial demonstrates stoichiometry by calculating the amount of hydrogen needed to react with nitrogen. It begins with balancing the chemical equation, converting grams to moles, and then back to grams. The process involves using a balanced chemical equation to find the mole-to-mole ratio and converting it to grams. The tutorial concludes with a review of the steps and emphasizes the importance of understanding the conversion process.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary focus of the stoichiometry demonstration in the video?

Identifying the limiting reactant

Balancing chemical equations

Determining the product of a chemical reaction

Calculating the amount of hydrogen needed to react with nitrogen

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in the stoichiometry process as described in the video?

Calculate the mass of the product

Panic

Balance the chemical equation

Convert grams to moles

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of balancing a chemical equation in stoichiometry?

To determine the limiting reactant

To ensure the conservation of mass

To calculate the theoretical yield

To identify the excess reactant

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many moles of hydrogen are required to produce two moles of ammonia according to the balanced equation?

Four moles

Three moles

Two moles

One mole

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the mass of one mole of nitrogen (N2) used in the calculation?

32 grams

28 grams

14 grams

2 grams

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many grams of hydrogen are needed to react with 5.0 grams of nitrogen?

0.53 grams

3.21 grams

2.14 grams

1.07 grams

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the mole-to-mole ratio of hydrogen to nitrogen in the reaction?

1:2

3:1

1:1

2:1

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