Balancing Chemical Equations Concepts

Balancing Chemical Equations Concepts

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Amelia Wright

FREE Resource

The video tutorial explains how to balance a chemical equation involving silver nitrate and magnesium chloride. It begins by counting atoms on both sides of the equation and introduces the concept of polyatomic ions, specifically the nitrate ion. The tutorial then demonstrates how to balance the equation by adjusting coefficients, focusing on nitrates, silvers, and chlorines. The process is simplified by treating the nitrate ion as a single unit, making it easier to achieve a balanced equation.

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the initial chemical equation discussed in the video?

C6H12O6 + O2

AgNO3 + MgCl2

H2O + CO2

NaCl + H2O

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a polyatomic ion mentioned in the video?

Phosphate ion

Chloride ion

Sulfate ion

Nitrate ion

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many nitrate ions are initially on the product side of the equation?

Three

Four

Two

One

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in balancing the equation?

Balancing the nitrates

Balancing the chlorines

Balancing the silvers

Balancing the magnesium

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What coefficient is used to balance the silver atoms?

Four

Three

Two

One

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many chlorines are on each side of the balanced equation?

Two

Four

One

Three

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What makes balancing the equation easier according to the video?

Using a calculator

Balancing each atom separately

Ignoring the polyatomic ions

Treating nitrate as a single unit