Balancing Chemical Reactions Concepts

Balancing Chemical Reactions Concepts

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Emma Peterson

FREE Resource

The video tutorial explains how to balance the chemical equation HCl + KOH → KCl + H2O. It begins by introducing the components of the equation, highlighting the neutralization reaction between an acid and a base to form a salt and water. The tutorial then guides viewers through counting the atoms on each side of the equation to ensure balance. It emphasizes the importance of counting all hydrogen atoms, including those in both hydrochloric acid and potassium hydroxide. The video concludes by confirming that the equation is already balanced and addresses common mistakes, such as forgetting to count all hydrogen atoms.

Read more

6 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the products formed when hydrochloric acid reacts with potassium hydroxide?

Chlorine gas and water

Potassium chloride and water

Hydrogen gas and potassium chloride

Potassium hydroxide and hydrochloric acid

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of reaction is HCl + KOH → KCl + H2O?

Synthesis

Decomposition

Combustion

Neutralization

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many hydrogen atoms are present on the reactant side of the equation?

Four

Two

One

Three

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which element's atom count is often overlooked when balancing this equation?

Hydrogen

Oxygen

Potassium

Chlorine

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main reason people struggle with balancing this equation?

Overcounting potassium atoms

Ignoring oxygen atoms

Miscounting chlorine atoms

Forgetting to count all hydrogen atoms

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final conclusion about the equation HCl + KOH → KCl + H2O?

It needs more reactants

It is unbalanced

It is balanced

It needs more products