Balancing Chemical Equations

Balancing Chemical Equations

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Sophia Harris

FREE Resource

The video tutorial explains how to balance the chemical equation of calcium chloride reacting with sodium carbonate to yield calcium carbonate and sodium chloride. It begins by counting the atoms on both the reactant and product sides of the equation. The tutorial identifies the imbalance in sodium and chlorine atoms and demonstrates how to balance the equation by adjusting coefficients. The final balanced equation is presented, ensuring equal numbers of each type of atom on both sides.

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6 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the products formed when calcium chloride reacts with sodium carbonate?

Calcium oxide and sodium hydroxide

Calcium sulfate and sodium nitrate

Calcium phosphate and sodium bicarbonate

Calcium carbonate and sodium chloride

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

Four

Three

Two

One

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which element's atoms are imbalanced between the reactant and product sides before balancing?

Calcium

Carbon

Sodium

Oxygen

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What coefficient is added in front of NaCl to balance the equation?

1

2

3

4

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

After balancing, how many sodium atoms are present on each side of the equation?

Three

Two

One

Four

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the balanced chemical equation for the reaction between calcium chloride and sodium carbonate?

CaCl2 + Na2CO3 → CaCO3 + NaCl

2CaCl2 + Na2CO3 → CaCO3 + 2NaCl

CaCl2 + Na2CO3 → CaCO3 + 2NaCl

CaCl2 + 2Na2CO3 → 2CaCO3 + NaCl