Year 12 Unit 3 Area of Study 1 | Baamboozle - Baamboozle

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What is the purpose of the salt bridge in a galvanic cell?

Adding a salt bridge completes the circuit allowing current to flow. Anions in the salt bridge flow toward the anode and cations in the salt bridge flow toward

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What is the reaction taking place at the anode?

Zn(s) -> Zn2+ + 2e-

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What is the formula to find the energy required to heat an amount of water?

Q = mct

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monster

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shark

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gift

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banana

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Answer the question.

Ethanol is the reducing agent

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Define what is meant by an endothermic reaction.

An endothermic reaction is a reaction that absorbs energy from the surroundings resulting in a net positive change in enthalpy.

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Answer the question.

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What is the enthalpy of the reverse reaction?

+10kJ/mol

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Is electrode P the anode or cathode? Explain your answer.

Anode

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What is the reaction taking place at the cathode?

Ag+(aq) + e- -> Ag(s)

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eraser

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gift

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gift

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thief

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monster

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gift

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gift

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thief

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Define what is meant by an exothermic reaction.

An exothermic reaction is a reaction that releases energy into the surroundings resulting in a net negative change in enthalpy.

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Define "renewable"

Renewable is a description of something that is able to be replenished at the same rate or faster than its consumption.

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Answer the question.

Rhubarb can be easily replenished.

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Name a difference between a galvanic cell and fuel cell.

Wire and membrane, continuous fuel supply, storage

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