Q3S7 Reactions

What reaction type is characterized by the reactant breaking down as the reaction progresses?

• Synthesis
• Decomposition
• Combustion
• Double Replacement

What two molecules are produced in a combustion reaction?

• CO₂ + NH₄
• SiO₂ + H₂O
• H₂O + CO₂
• CO₂ + H₂O₂

Which set of coefficients properly balances the reaction below?
_Cu + _H₂O →_ CuO₃ + _H₂

• 1,3,1,5
• 2,6,2,6
• 1,3,1,3
• 1,2,3,4

What is the coefficient of AgNO₃ in this reaction?
_AgNO₃ + _H₂S →_Ag₂S+_HNO₃

• 1
• 2
• 3
• 4

Which of the following can be categorized as a synthesis reaction?

• Ba + NaCl →BaCl₂ + Na
• KNO₃→K⁺ + NO₃^-
• 2Li + F₂ → 2LiF
• HCl + LiNO₃ → HNO₃ + LiCl

What are the correct coefficients for the reaction below?
_C₄H₁₀ + _O₂ → _CO₂ + _H₂O

• 4, 26, 16, 20
• 2, 13, 8, 10
• 1, 6.5, 4, 5
• 2, 8, 13, 10

What type of reaction is displayed below?
2Al + Fe₂O₃ → 2Fe + Al₂O₃

• Single Replacement
• Double Replacement
• Synthesis
• Combustion

What type of reaction is characterized by two compounds switching bonding partners?

• Single Replacement
• Combustion
• Synthesis
• Double Replacement

What are the correct coefficients to balance the reaction below?
_BaO + _K₃N → _Ba₃N₂ + _K₂O

• 3,2,1,2
• 3,3,1,3
• 3,2,1,3
• 3,1,2,3

The Law of Conservation of Mass states

• that matter exists in all states and reacts the same
• that matter can only be changed into new substances by introducing a catalyst
• that matter exists in the same state throughout any chemical change
• that matter cannot be created or destroyed and that the mass of the products must equal the mass of the reactants