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Chemistry

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Angus Koepp

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Cards in this guide (14)
What happens in a redox reaction

Electrons are transferred between atoms.

How can you tell if an element has been reduced

it has more electrons in the product than in the reactant

What is the molarity of 4 mol of NaOH dissolved in 2 L of water

2 m

How can you tell for sure that a redox reaction has happened

if oxidation states change, it is a redox reaction

What are the oxidation states of the atoms in a diatomic gas

the oxidation states are always 0 for both atoms

What makes balancing redox reactions different from balancing other reactions

Balancing redox reactions is different from balancing other reactions because both the number of atoms and the amount of charge must be balanced.

How does the activity series of metals tell which reactions will occur

Metals higher in the series will replace metal ions in solution that are lower in the series

Which of the following best describes a galvanic cell

A battery containing a spontaneous redox reaction

Which is the least likely to be reduced

Mg2+

Food engineering focuses on

Food engineering focuses on inventing ways to make food more accessible to populations. This can be done, for example, by genetic modification.

What is the oxidation state of N in NH4 plus

-3

What is the voltage of a galvanic cell made with silver an nickel

The voltage of a galvanic cell is the difference between the half cell potentials for the two reactions. For silver and nickel, this is about 1 volt.

Is not a concern regarding the use of corn as a biofuel

The color of corn is different than the color of gasoline or coal

APEX

Which is the most likely to be reduced

something about "native" should be ur answer..apex

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