Balancing Chemical Equations Concepts

Balancing Chemical Equations Concepts

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Lucas Foster

FREE Resource

In this video, Dr. B demonstrates how to balance the chemical equation for ALP plus H2O. The process begins with counting the atoms on both the reactant and product sides. Initially, the reactant side has one aluminum, one phosphorus, two hydrogens, and one oxygen. The product side has one aluminum, one phosphorus, six hydrogens, and three oxygens. To balance the equation, Dr. B adjusts the coefficients, placing a 3 in front of H2O to equalize the number of hydrogen and oxygen atoms on both sides. The video concludes with the balanced equation and a brief summary.

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6 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the initial count of aluminum atoms on the reactant side of the equation?

One

Two

Three

Four

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many hydrogen atoms are initially present on the reactant side?

One

Two

Three

Four

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the total number of hydrogen atoms on the product side after considering the parentheses?

Four

Six

Three

Five

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many oxygen atoms are there on the product side after considering the parentheses?

Two

Three

Four

One

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What coefficient should be placed in front of H2O to balance the hydrogen atoms?

1

4

2

3

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

After balancing, how many oxygen atoms are there on each side of the equation?

Three

Four

Two

One