G-6 (Unit-5 Types of Reaction)

Multiple Choice

What types of chemical reaction is this?

4Si + S₈ --> 2Si₂S₄

• Synthesis

• Single displacement

• Decomposition

• Double displacement

Multiple Choice

What types of chemical reaction is this?

3Ca + 2AlCl₃ --> 3CaCl₂ + 2Al

• Synthesis

• Single displacement

• Decomposition

• Double displacement

Multiple Choice

What types of chemical reaction is this?

3KOH + H₃PO₄ --> K₃PO₄ + 3H₂O

• Synthesis

• Single displacement

• Decomposition

• Double displacement

Multiple Choice

What types of chemical reaction is this?

2Pb(NO₃)₂ --> 2PbO + 4NO₂ + O₂

• Synthesis

• Single displacement

• Decomposition

• Double displacement

Multiple Choice

What types of chemical reaction is this?

3Mg + N₂ --> Mg₃N₂

• Synthesis

• Single displacement

• Decomposition

• Double displacement

Multiple Choice

What types of chemical reaction is this?

H₂SO₄ + Fe --> H₂ + FeSO₄

• Synthesis

• Single displacement

• Decomposition

• Double displacement

Multiple Choice

What types of chemical reaction is this?

PbCl₂ + AgNO₃ ---> Pb(NO₃)₂ + AgCl 

• Synthesis

• Single displacement

• Decomposition

• Double displacement

Multiple Choice

What types of chemical reaction is this?

NH₃ + HCl ---> NH₄Cl 

• Synthesis

• Single displacement

• Decomposition

• Double displacement

Multiple Choice

What types of chemical reaction is this?

2NO₂ --> N₂ + 2O₂

• Synthesis

• Single displacement

• Decomposition

• Double displacement

Multiple Choice

Which chemical reaction takes place when 2 substances react to form a single product?

• Synthesis

• Single displacement

• Decomposition

• Double displacement

Multiple Choice

What types of chemical reaction is this?

Fe + H₂SO₄ --> Fe₂(SO₄)₃ + H₂

• Synthesis

• Single displacement

• Decomposition

• Double displacement

Multiple Choice

What types of chemical reaction is this?

2C₅H₁₀O₄ + 11O₂ --> 10CO₂ + 10H₂O

• Combustion

• Single displacement

• Decomposition

• Double displacement

Multiple Choice

What types of chemical reaction is this?

C₄H₁₂ + 9O₂ --> 4CO₂ + 6H₂O

• Combustion

• Single displacement

• Decomposition

• Double displacement

Multiple Choice

Which of the following is the general formula for a decomposition reaction?

• A + B  → AB

• AB + C → AC + B

• AB → A + B

• AB + CD → AC + BD

Multiple Choice

Which of the following is the general formula for a synthesis reaction?

• A + B  → AB

• AB + C → AC + B

• AB → A + B

• AB + CD → AC + BD

Multiple Choice

Which of the following is the general formula for a single displacement reaction?

• A + B  → AB

• AB + C → AC + B

• AB → A + B

• AB + CD → AC + BD

Multiple Choice

Which of the following is the general formula for a double displacement reaction?

• A + B  → AB

• AB + C → AC + B

• AB → A + B

• AB + CD → AC + BD

Multiple Choice

What coefficient (?) should be used to make the following equation balanced?

This is an unbalanced equation.
_N₂ + _O₂ --> (?) NO 

• 1

• 2

• 3

• 4

Multiple Choice

What coefficient (?) should be used to make the following equation balanced?

This is an unbalanced equation.
_Li + _Cl₂ -> (?) LiCl

• 1

• 2

• 3

• 4

Multiple Choice

Consider the unbalanced equation:

_?_Fe + __O₂ -> __FeO

What is the coefficient in front of iron ( _?_Fe ) needed to balance the equation?

• 1

• 2

• 3

• 4

Multiple Choice

Consider the unbalanced equation:

_?_Mg + __HCl → __MgCl₂ + __H₂

What is the coefficient needed in front of magnesium ( _?_Mg ) to balance the equation?

• 1

• 2

• 3

• 4

Multiple Choice

Consider the unbalanced equation:

__C₄H₈ + _?_O₂ → __CO₂ + __H₂O

what coefficient should be placed in front of oxygen ( _?_O₂ ) to balance the equation?

• 6

• 5

• 4

• 3

Multiple Choice

Consider the unbalanced equation:

_?_Al + __O₂ → __Al₂O₃

What coefficient is needed in front of aluminum ( _?_Al ) to balance the equation?

• 1

• 2

• 3

• 4

Multiple Choice

Consider the unbalanced equation:

_?_CaCO₃ → __CaO + __CO₂

what coefficient should be placed in front of calcium carbonate ( _?_CaCO₃ ) to balance the equation?

• 1

• 2

• 3

• 4

Multiple Choice

Consider the unbalanced equation:

__H₂ + __O₂ → _?_H₂O

what coefficient is needed in front of water ( _?_H₂O ) to balance the equation?

• 1

• 2

• 3

• 4

Multiple Choice

Which type of reaction involves a hydrocarbon (C_xH_y) compound reacting with oxygen to create a lot of heat and energy, water and carbon dioxide?

• Synthesis

• Combustion

• Acid-Base Reaction

• Decomposition

Multiple Choice

When balanced, the correct coefficients for the equation are:

• 3, 1, 2, 1

• 1, 2, 3, 4

• 2, 1, 2, 1

• 1, 2, 1, 1

Multiple Choice

When balancing a chemical equation, you can only change _________, you can never change _______!

• coefficients, subscripts

• subscripts, coefficients

• formulas, subscripts

• coefficients, formula units

Multiple Choice

When the equation is balanced what are the correct coefficients?

• 1, 1, 2

•  1, 3, 1

• 2, 2, 3

• 2, 3, 2

Multiple Choice

What are the correct coefficients when the equation is balanced?

• 2, 3, 4

• 4, 3, 2

• 1, 1, 2

• 2, 1, 1

Multiple Choice

Which of the following is an example of a synthesis reaction?

Multiple Choice

Which of the following is an example of a decomposition reaction?

Multiple Choice

Which of the following is an example of a single replacement reaction?

Multiple Choice

Which of the following is an example of a double replacement reaction?

Multiple Choice

The red numbers in the image represent

• subscripts

• coeffiecients

• roman numerals

• none of the answer options are correct

Multiple Choice

The blue numbers in the image represent

• subscripts

• coeffiecients

• roman numerals

• none of the answer options are correct

Multiple Choice

Which type of reaction is:

2 NaBr + Ca(OH)₂ → CaBr₂ + 2 NaOH

• Synthesis
• Single Displacement
• Double Displacement
• Combustion

Multiple Choice

Which type of reaction is: C₂H₄ + 3 O₂ → 2 CO₂ + 2 H₂O

• Synthesis
• Decomposition
• Single Displacement
• Combustion

Multiple Choice

When balancing equations, the rule is that you can only add, change, and remove

• Coefficients
• Mass
• Subscripts
• Elements 

Multiple Choice

Which type of reaction is:

3 Pb + 2 H₃PO₄ → 3 H₂ + Pb₃(PO₄)₂

• Synthesis
• Single Displacement
• Double Displacement
• Combustion

Multiple Choice

Which type of reaction is:

C₇H₁₆ + 10 O₂ → 7 CO₂ + 8 H₂O

• Synthesis
• Decomposition
• Single Displacement
• Combustion

Multiple Choice

What is decomposition?

• putting substances together
• breaking substances apart
• element replacing another element in a compoud
• burning of a subtance

Multiple Choice

Which chemical equation represents a decomposition reaction?

• 2H₂O → 2H₂ + O₂

• AgNO₃ + LiCl → AgCl + LiNO₃

• Ca + MgS → CaS + Mg

• 2C₂H₆ + 7O₂ → 4CO₂ + 6H₂O

Multiple Choice

Which products are formed when propane (C₃H₈) undergoes combustion?

• Water and carbon dioxide

• Water and carbon

• Hydrogen and carbon dioxide

• Water, carbon dioxide, and oxygen

Multiple Choice

Numbers before symbols and formulas are called

• coefficients

• subscripts

• fractions

• superscripts

Multiple Choice

The substances to the right of the arrow are

• catalyst

• products

• reactants

• precipitate

Multiple Choice

Same number of atoms on both sides of an equation

• unbalanced equation

• complex equation

• balanced equation

• simple equation

Multiple Choice

The substances to the left of the arrow are

• products

• coefficients

• reactants

• catalysts

Multiple Choice

What are the products of combustion?

• Hydrogen + oxygen

• Carbon dioxide + water

• Carbon dioxide + hydrogen

• Carbon + water

Multiple Choice

In this chemical reaction, which is the product/s?

Magnesium + Oxygen --> Magnesium oxide

• magnesium

• magnesium and oxygen

• magnesium oxide

• oxygen

Multiple Choice

What type of reaction is this?

4Fe_(s) + 3O_2(g) ---> 2 Fe₂O_3(s)

• double displacement

• synthesis

• combustion

• decomposition