Stoichiometry and Chemical Reactions

Stoichiometry and Chemical Reactions

Assessment

Interactive Video

Chemistry, Science, Mathematics

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial covers various chemistry topics, starting with an introduction to chemical reactions, including single replacement and combustion. It explains the activity series, which ranks elements by reactivity, and how it applies to chemical reactions. The tutorial then delves into stoichiometry, emphasizing the importance of balanced equations and demonstrating how to solve stoichiometry problems using tables and calculations. The video provides practical examples to help students understand the concepts and apply them to real-world chemistry problems.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of reaction involves a non-metal switching places with another element?

Double replacement

Single replacement

Combustion

Decomposition

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a combustion reaction, what are the typical products formed?

Nitrogen and ammonia

Methane and carbon monoxide

Oxygen and hydrogen

Carbon dioxide and water

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does an activity series help predict in chemical reactions?

Which element will replace another in a compound

The temperature at which a reaction occurs

The color change in a reaction

The speed of a reaction

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the activity series organized?

By element color

From most reactive to least reactive

By atomic number

Alphabetically by element name

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it important to use a balanced equation in stoichiometry?

To predict the temperature change

To determine the color of the products

To accurately calculate the amounts of reactants and products

To ensure the reaction is safe

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in solving a stoichiometry problem?

Balancing the chemical equation

Identifying the color change

Measuring the temperature

Guessing the answer

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to the law of conservation of matter, if you start with 82 atoms of nitrogen, how many should you end with?

0 atoms

164 atoms

82 atoms

41 atoms

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