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Chemistry

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Gisselle Eichmann

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2y ago
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Cards in this guide (17)
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 is the mass percent composition of an element in a molecule

Percentage composition= (mass of the element/mass of the molecule)*100

The fraction of the molecule's mass that comes from the element's mass

How is stoichiometry used to calculate the amount of product produced

Stoichiometry relates moles of reactant to moles of product, so if you have the amount of reactant in the equation, you can calculate the amount of product produced.

How do atoms show both unity and diversity

There are relatively few atoms, but they make many molecules.

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

. The reaction will be spontaneous.

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 to the anode in an electrochemical cell

it loses mass

What happens at the cathode in an electrolytic cell

Reduction occurs at the cathode in an electrolytic cell.

What needs to be considered in balancing redox reactions

Both atoms and charge

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+

What is the oxidizing agent in the reaction Fe AgNO3 FeNO33 Ag

AgNO3 #APEX

What characteristics indicates that an atom is unstable

by creating very strong bonds

All life on earth is ultimately dependent on what

The sun for energy

Reduction occurs at which electrode

The electrode that removes ions from solution

Which is the most likely to be reduced

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

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