Chemical Equations: Writing and Balancing Chemical Equations ( Form 2, Chemistry )

Froggy Jumps

Played 0

Create copy

About this activity

Balancing chemical equations basics.

Created by

YAKILI LMS

Cameroon

Download the paper version to play

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

Phlebotomy Order of Draw Quiz

Pamela Chapman

United States

(64)

Test your knowledge of the order of draw in Phlebotomy with these 10 questions!
The Integumentary System

Breanna Nesbitt

United States

(59)

Functions and Structures of the skin
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.
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.
pizza

Lorelay Tyana

Romania

(278)

joc despre pizza

		%
	Anonymous	%
		%
		%

Print your game

Chemical Equations: Writing and Balancing Chemical Equations ( Form 2, Chemistry )


Froggy Jumps Chemical Equations: Writing and Balancing Chemical Equations ( Form 2, Chemistry )Online version Balancing chemical equations basics. by YAKILI LMS 1 What symbol is used to indicate a reactant in a chemical equation? a Arrow b Plus sign c Equals sign 2 In a chemical equation, what must be true about the atoms on both sides? a They can differ b They must balance c Only metals must balance 3 What is the term for a chemical equation with the same number of atoms of each element on both sides? a Composite equation b Balanced equation c Unbalanced equation 4 Which number is adjusted to balance equations? a subscripts b Coefficients c Molar mass 5 What does a subscript in a chemical formula indicate? a Number of atoms of an element in a molecule b Charge of an ion c Amount of substance 6 Which of the following is a product in the reaction: H2 + O2 -> ? a H2O2 b HO c H2O 7 Balance the equation: H2 + Cl2 -> HCl a H2 + Cl2 -> 2HCl b 2H2 + Cl2 -> 2HCl c H2 + Cl2 -> HCl 8 What is the first step in balancing an equation? a Write the skeleton equation b Balance oxygen first c Add coefficients randomly 9 In Fe + O2 -> Fe2O3, how many Fe atoms are in the balanced equation? a 4 b 6 c 2 10 In the reaction Na + H2O -> NaOH + H2, what is the product containing sodium? a NaOH b NaH c Na2O 11 What does balancing ensure for mass? a Different mass on each side b Only charge balance c Same mass of each element on both sides 12 Which is a diatomic molecule? a H2O b O2 c CO2 13 Balance this equation: Al + O2 -> Al2O3 a 4Al + 3O2 -> 2Al2O3 b 2Al + O2 -> Al2O3 c Al + O2 -> Al2O3 14 Which law underpins balancing chemical equations? a Avogadro's law b Law of conservation of mass c Law of definite proportions 15 Which is a product in the equation N2 + 3H2 -> 2NH3? a H2N b N2H3 c NH3 16 What does a coefficient multiply in a formula? a The charge of ions b The number of molecules or units c The total mass 17 Balance this: C + O2 -> CO2 a C + O2 -> CO2 b 2C + O2 -> CO2 c C + O -> CO2 18 Which element balance is usually adjusted last? a Oxygen b Carbon c Hydrogen 19 In the reaction Fe + S -> FeS, what is the product? a FeS2 b FeS c SFe 20 Which type of reaction forms a solid as product? a Decomposition b Precipitation c Combustion 21 What is the product when HCl reacts with NaOH? a NaCl + H2O b NaOH2 + Cl2 c NaClO + H2 22 Balance this: KMnO4 + H2C2O4 -> K2CO2 + MnO2 + CO2 + H2O a Unbalanced; skip complex here b Balanced; not needed c Balanced with simple coefficients 23 Which type of equation shows reactants and products as formulas only? a Wordless molecular equation b Net ionic equation c Ionic equation 24 What is a spectator ion? a The ion that reacts b A gas ion c An ion not involved in the reaction 25 Balance: Na2SO4 + BaCl2 -> NaCl + BaSO4 a Na2SO4 + BaCl2 -> 2NaCl + BaSO4 b Na2SO4 + BaCl2 -> Na2Cl + BaSO3 c Na2SO4 + BaCl2 -> NaCl + BaSO3 26 What does the term 'stoichiometry' refer to? a Color change b Quantities in a chemical reaction c State of matter 27 Which gas is typically produced in metal–acid reactions? a Hydrogen b Nitrogen c Oxygen 28 Balance this: Cu + AgNO3 -> Cu(NO3)2 + Ag a Cu + 2AgNO3 -> Cu(NO3)2 + 2Ag b Cu + AgNO3 -> CuNO3 + Ag2 c Cu + AgNO3 -> Cu(NO3)2 + Ag 29 Which statement is true about balancing equations? a Hydrogen never balances b All elements must balance c Only carbon must balance 30 In balancing, what does a coefficient of 2 in front of H2O mean? a Two molecules of water b Two atoms of water c Two moles of water 31 What is the product of combustion of methane (CH4 + O2)? a CH4O2 + H2 b CO2 + H2O c CH4O + CO2 32 Which side should have the same total mass as the other side? a Both sides b Only one side c Neither side 33 Balance this: N2 + H2 -> NH3 a 2N2 + 3H2 -> 2NH3 b N2 + H2 -> NH3 c N2 + 3H2 -> 2NH3 34 What is the role of a catalyst in a reaction equation? a Speeds up the reaction without permanent change b Consumed in reaction c Slows down the reaction 35 Which type of equation shows state symbols? a Net ionic equation b Molar equation c A complete ionic equation 36 Balance this: C3H8 + O2 -> CO2 + H2O a C3H8 + 3O2 -> CO2 + H2O b C3H8 + O2 -> CO2 + H2O c C3H8 + 5O2 -> 3CO2 + 4H2O 37 What indicates the energy change in a reaction equation? a A circle symbol b A star symbol c A delta/triangle symbol 38 Which change occurs when balancing equations? a Only coefficients may change b Subscripts may change c Atoms may vanish 39 In CaCO3 -> CaO + CO2, which process occurs? a Decomposition b Single replacement c Combination 40 What is the product of S + F2 -> SF6? a SF5 b SF6 c S2F6 41 Which is a balanced form of: Fe + Cl2 -> FeCl3? a 2Fe + 3Cl2 -> 2FeCl3 b 2Fe + Cl2 -> FeCl3 c Fe + Cl2 -> FeCl3 42 What does a balanced equation obey for each element? a Conservation of color b Conservation of charge c Conservation of atoms 43 Which is NOT a common product in acid–base neutralization? a Hydrogen gas b Salt c Water 44 Balance this: Na + H2O -> NaOH + H2 a 2Na + H2O -> NaOH + H2 b 2Na + 2H2O -> 2NaOH + H2 c Na + H2O -> NaOH + H2 45 Which type of reaction involves a single element replacing another in a compound? a Single replacement b Synthesis c Double replacement 46 Balance this: KClO3 -> KCl + O2 a 2KClO3 -> 2KCl + 3O2 b KClO3 -> KCl + O2 + O2 c KClO3 -> KCl + O2 47 Which rule helps decide coefficients when balancing water formation? a Carbon must balance first b Hydrogen and oxygen must balance last c Always start with metals 48 What is missing in a skeleton equation? a Coefficients b Catalysts c State symbols 49 Which reaction type forms water as a product? a Precipitation b Combustion c Decomposition 50 Balance this: Mg + HCl -> MgCl2 + H2 a MgCl2 + H2 -> Mg + 2HCl b Mg + HCl -> MgCl + H2 c Mg + 2HCl -> MgCl2 + H2

Chemical Equations: Writing and Balancing Chemical Equations ( Form 2, Chemistry )

Froggy Jumps

About this activity

Created by

Download the paper version to play

Top Games

Froggy Jumps

Phlebotomy Order of Draw Quiz

Froggy Jumps

The Integumentary System

Froggy Jumps

Ethos, Pathos, and Logos Quiz

Froggy Jumps

Bill of Rights Game - The Constitutionalist

Froggy Jumps

pizza

Froggy Jumps

Chemical Equations: Writing and Balancing Chemical Equations ( Form 2, Chemistry )Online version

by YAKILI LMS

What symbol is used to indicate a reactant in a chemical equation?

In a chemical equation, what must be true about the atoms on both sides?

What is the term for a chemical equation with the same number of atoms of each element on both sides?

Which number is adjusted to balance equations?

What does a subscript in a chemical formula indicate?

Which of the following is a product in the reaction: H2 + O2 -> ?

Balance the equation: H2 + Cl2 -> HCl

What is the first step in balancing an equation?

In Fe + O2 -> Fe2O3, how many Fe atoms are in the balanced equation?

In the reaction Na + H2O -> NaOH + H2, what is the product containing sodium?

What does balancing ensure for mass?

Which is a diatomic molecule?

Balance this equation: Al + O2 -> Al2O3

Which law underpins balancing chemical equations?

Which is a product in the equation N2 + 3H2 -> 2NH3?

What does a coefficient multiply in a formula?

Balance this: C + O2 -> CO2

Which element balance is usually adjusted last?

In the reaction Fe + S -> FeS, what is the product?

Which type of reaction forms a solid as product?

What is the product when HCl reacts with NaOH?

Balance this: KMnO4 + H2C2O4 -> K2CO2 + MnO2 + CO2 + H2O

Which type of equation shows reactants and products as formulas only?

What is a spectator ion?

Balance: Na2SO4 + BaCl2 -> NaCl + BaSO4

What does the term 'stoichiometry' refer to?

Which gas is typically produced in metal–acid reactions?

Balance this: Cu + AgNO3 -> Cu(NO3)2 + Ag

Which statement is true about balancing equations?

In balancing, what does a coefficient of 2 in front of H2O mean?

What is the product of combustion of methane (CH4 + O2)?

Which side should have the same total mass as the other side?

Balance this: N2 + H2 -> NH3

What is the role of a catalyst in a reaction equation?

Which type of equation shows state symbols?

Balance this: C3H8 + O2 -> CO2 + H2O

What indicates the energy change in a reaction equation?

Which change occurs when balancing equations?

In CaCO3 -> CaO + CO2, which process occurs?

What is the product of S + F2 -> SF6?

Which is a balanced form of: Fe + Cl2 -> FeCl3?

What does a balanced equation obey for each element?

Which is NOT a common product in acid–base neutralization?

Balance this: Na + H2O -> NaOH + H2

Which type of reaction involves a single element replacing another in a compound?

Balance this: KClO3 -> KCl + O2

Which rule helps decide coefficients when balancing water formation?

What is missing in a skeleton equation?

Which reaction type forms water as a product?

Balance this: Mg + HCl -> MgCl2 + H2