e l e c t r o c h e m i c a l c e l l s

Can you place copper, zinc and magnesium in order of reactivity (from most reactive to least reactive)?

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What is the purpose of the salt bridge in an electrochemical cell?

• to complete the circuit

• provide physical isolation between the two halves of the cell

• two options are true

Көп жағдайда ерітіндінің ортасын сапалық түрде анықтау үшін … деп аталатын арнайы реактивтер қолданылады.

Ерітінділердің химиялық теориясының негізін қалаған ғалым:

Find the products of reaction between barium nitrate and sodium sulfate:

• white colored precipitate of barium sulfate

• sodium nitrate and barium nitrate

• barium sulfate and sodium nitrate

What 3 parts are in an electrochemical cell?

Why is NaCl not used in salt bridge?

• it is too simple compound to be a salt bridge

• the electrodes such as silver, lead or copper don’t react with chlorine ions

• the electrodes such as silver, lead or copper precipitate with chlorine ions

Electromotive force represents

• force

• energy

• energy per unit charge

• current