Grade 10 Chemistry: Percent Composition & Empirical Formulas

Froggy Jumps

Played 10

Create copy

About this activity

60-second challenges on mass % and empirical formulas.

Created by

sameh Ali

Saudi Arabia

Download the paper version to play

Top 10 results

#	Player	Accuracy	time
1	sameh Ali December 23, 2025	% 22	02:27

Do you want to stay in the Top 10 of this game? Log in to identify yourself.

Make your own free game from our game creator

Compete against your friends to see who gets the best score in this game

Make challenge

The Integumentary System

Breanna Nesbitt

United States

(59)

Functions and Structures of the skin
Bill of Rights Game - The Constitutionalist

Doni The Don

United States

(92)

Test your knowledge on the Bill of Rights. A fun way to test your knowledge and focus on where you need to improve.
Phlebotomy Order of Draw Quiz

Pamela Chapman

United States

(64)

Test your knowledge of the order of draw in Phlebotomy with these 10 questions!
pizza

Lorelay Tyana

Romania

(278)

joc despre pizza
Ethos, Pathos, and Logos Quiz

Kristine Vester

United States

(143)

Test your knowledge of ethos, pathos, and logos with these 10 questions on examples of persuasive techniques.


Froggy Jumps Grade 10 Chemistry: Percent Composition & Empirical FormulasOnline version 60-second challenges on mass % and empirical formulas. by sameh Ali 1 A compound has 52 g C, 13 g H, and 26 g O. What is the percent composition of carbon? You have 60 seconds to answer. a 62.5% b 57.1% c 43.0% 2 A compound is 40% C, 6.7% H, and 53.3% O by mass. Its empirical formula is? You have 60 seconds to answer. a CH2O b C2H4O2 c CO2 3 A compound has empirical formula CH2O and molar mass 90 g/mol. What is its molecular formula? You have 60 seconds to answer. a C6H12O6 b C2H4O2 c C3H6O3 4 Percent composition of CO2 is approximately? You have 60 seconds to answer. a C: 40.0%, O: 60.0% b C: 27.3%, O: 72.7% c C: 60.0%, O: 40.0% 5 If a compound has 24.31 g Mg and 40.30 g O, the percent composition of Mg is? You have 60 seconds to answer. a 40.3% b 60.3% c 71.5% 6 An empirical formula from masses: 12 g C, 16 g O, 4 g H gives empirical formula? You have 60 seconds to answer. a CH2O b C2H4O2 c CH4O 7 Which of these represents a valid empirical formula from mass data? You have 60 seconds to answer. a NH b NHO2 c N2H2O 8 A compound with mass percent C 50%, H 6.7%, O 43.3%. Empirical formula is? You have 60 seconds to answer. a C2H5O b C3H6O3 c CH2O 9 Percent composition of iron oxide, Fe2O3: Fe ~70.9%, O ~29.1%. True or false? You have 60 seconds to answer. a True b False c Cannot determine

Froggy Jumps

Grade 10 Chemistry: Percent Composition & Empirical FormulasOnline version

60-second challenges on mass % and empirical formulas.

by sameh Ali

A compound has 52 g C, 13 g H, and 26 g O. What is the percent composition of carbon? You have 60 seconds to answer.

62.5%

57.1%

43.0%

A compound is 40% C, 6.7% H, and 53.3% O by mass. Its empirical formula is? You have 60 seconds to answer.

CH2O

C2H4O2

CO2

A compound has empirical formula CH2O and molar mass 90 g/mol. What is its molecular formula? You have 60 seconds to answer.

C6H12O6

C2H4O2

C3H6O3

Percent composition of CO2 is approximately? You have 60 seconds to answer.

C: 40.0%, O: 60.0%

C: 27.3%, O: 72.7%

C: 60.0%, O: 40.0%

If a compound has 24.31 g Mg and 40.30 g O, the percent composition of Mg is? You have 60 seconds to answer.

40.3%

60.3%

71.5%

An empirical formula from masses: 12 g C, 16 g O, 4 g H gives empirical formula? You have 60 seconds to answer.

CH2O

C2H4O2

CH4O

Which of these represents a valid empirical formula from mass data? You have 60 seconds to answer.

NHO2

N2H2O

A compound with mass percent C 50%, H 6.7%, O 43.3%. Empirical formula is? You have 60 seconds to answer.

C2H5O

C3H6O3

CH2O

Percent composition of iron oxide, Fe2O3: Fe ~70.9%, O ~29.1%. True or false? You have 60 seconds to answer.

True

False

Cannot determine

You can integrate the game into an LMS compatible with LTI 1.1 or LTI 1.3 such as Canvas, Moodle, or Blackboard. This way, the scores will be automatically saved into the platform’s gradebook.

Grade 10 Chemistry: Percent Composition & Empirical Formulas

Froggy Jumps

About this activity

Created by

Download the paper version to play

Top Games

Froggy Jumps

The Integumentary System

Froggy Jumps

Bill of Rights Game - The Constitutionalist

Froggy Jumps

Phlebotomy Order of Draw Quiz

Froggy Jumps

pizza

Froggy Jumps

Ethos, Pathos, and Logos Quiz

Froggy Jumps

Grade 10 Chemistry: Percent Composition & Empirical FormulasOnline version

by sameh Ali

A compound has 52 g C, 13 g H, and 26 g O. What is the percent composition of carbon? You have 60 seconds to answer.

A compound is 40% C, 6.7% H, and 53.3% O by mass. Its empirical formula is? You have 60 seconds to answer.

A compound has empirical formula CH2O and molar mass 90 g/mol. What is its molecular formula? You have 60 seconds to answer.

Percent composition of CO2 is approximately? You have 60 seconds to answer.

If a compound has 24.31 g Mg and 40.30 g O, the percent composition of Mg is? You have 60 seconds to answer.

An empirical formula from masses: 12 g C, 16 g O, 4 g H gives empirical formula? You have 60 seconds to answer.

Which of these represents a valid empirical formula from mass data? You have 60 seconds to answer.

A compound with mass percent C 50%, H 6.7%, O 43.3%. Empirical formula is? You have 60 seconds to answer.

Percent composition of iron oxide, Fe2O3: Fe ~70.9%, O ~29.1%. True or false? You have 60 seconds to answer.

		%
	Anonymous	%
		%
		%