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Questions and Answers
Which type of reaction involves breaking down a single compound into two or more simpler substances?
Which type of reaction involves breaking down a single compound into two or more simpler substances?
- Combination reaction
- Decomposition reaction (correct)
- Double displacement reaction
- Displacement reaction
In a decomposition reaction, when energy is supplied in the form of heat, what is the likely result?
In a decomposition reaction, when energy is supplied in the form of heat, what is the likely result?
- Release of energy (correct)
- No change in energy
- Formation of more complex compounds
- Formation of a single compound
Which of the following is an example of a decomposition reaction where energy is supplied in the form of light?
Which of the following is an example of a decomposition reaction where energy is supplied in the form of light?
- 2AgCl → 2Ag + Cl₂
- 2KClO₃ → 2KCl + 3O₂
- CaCO₃ → CaO + CO₂ (correct)
- 2H₂O → 2H₂ + O₂
Why are decomposition reactions considered the opposite of combination reactions?
Why are decomposition reactions considered the opposite of combination reactions?
Which reaction involves the interchange of ions between two compounds to form new compounds?
Which reaction involves the interchange of ions between two compounds to form new compounds?
In the refining of silver, what type of reaction is involved when copper displaces silver from a silver nitrate solution?
In the refining of silver, what type of reaction is involved when copper displaces silver from a silver nitrate solution?
What characterizes a precipitation reaction?
What characterizes a precipitation reaction?
Which statement best describes respiration as an exothermic reaction?
Which statement best describes respiration as an exothermic reaction?
'Hydrogen chloride(g)' is an example of a product in which type of reaction?
'Hydrogen chloride(g)' is an example of a product in which type of reaction?
What distinguishes double displacement reactions from displacement reactions?
What distinguishes double displacement reactions from displacement reactions?
