Electrochemistry

The kind of chemistry that happens inside of a battery is called ___

• quantum electrodynamics

• thermodynamics

• equilibrium chemistry

• electrochemistry

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NGSS.HS-PS1-4

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Specifically, chemical reactions that involve the exchange of electrons are classified as ___

• precipitation reactions

• redox reactions

• combustion reactions

• electrolysis

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A reaction's electrical potential, the strength of the push or pull on electrons, is commonly referred to as ___

• current flow

• voltage

• resistance

• impedance

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When dealing with electrochemistry, the reaction process can be simplified by thinking in terms of ___

• half reactions

• quarter reactions

• semi-exchanges

• two-step reactions

The oxidation number of elemental zinc is ___

• 0

• -2

• +2

• +4

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NGSS.HS-PS1-1

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In alkaline batteries, the water and hydroxide ions come from a basic solution of ___

• potassium hydroxide

• sulfuric acid

• ammonia

• baking soda

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Excess electrons build up in the negative terminal of a battery, called the ___

• anode

• cathode

• diode

• capacitor

The positive terminal of a battery, which has a deficiency of electrons, is called the ___

• anode

• cathode

• anion

• cation

Electrons can cross from one half reaction to the other only when we connect the battery terminals with ___

• a lightbulb

• Hank's tongue

• insulators

• conductors

In the alkaline batteries, what keeps the zinc and the manganese oxide from mixing?

• a salt bridge

• a permeable membrane

• a cellulose barrier

• a metal conductor