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Chemistry

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Veronica Wilkinson

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Cards in this guide (14)
What is the basic unit of chemistry

The atom

How is stoichiometry used

Stoichiometry is used to find the molar ratios between the reactants of a chemical reaction.

What can be said about a redox reaction that has a positive potential

. The reaction will be spontaneous.

What gets plated during electroplating

The metal being used as the cathode

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.

What happens at the cathode in an electrolytic cell

Reduction occurs at the cathode in an electrolytic cell.

What does a negative cell voltage mean

The reaction is nonspontaneous.

Which is the least likely to be reduced

Mg2+

What characteristics indicates that an atom is unstable

by creating very strong bonds

What is the oxidation half-reaction for Mg s plus ZnCl2 aq --- MgCl2 aq plus Zn s

MgCl2 aq plus Zn s is the oxidation half-reaction for Mg s plus ZnCl2 aq.

What is the overall voltage for a redox reaction with the half reactions Mg s -- Mg2 plus plus 2e- and Cu2 plus -- Cu s

The overall voltage for a redox reaction with the half reactions Mg s -- Mg2 plus plus 2e- and Cu2 plus -- Cu is 76 V.

If 507 g FeCl2 were used up in the reaction FeCl2 plus 2NaOH Fe(OH)2(s) plus 2NaCl how many grams of NaCl would be made

467.52 g NaCl

What is one way forces act on a atoms

Forces causes bonds to form

Which is the most likely to be reduced

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

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