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Chemistry

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Richard Grimes

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Cards in this guide (11)
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.

Is candle burning a spontaneous or non spontaneous reaction

Spontaneous

How do atoms show both unity and diversity

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

What is the voltage of a galvanic cell made with magnesium and gold

4.2 V

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.

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+

All life on earth is ultimately dependent on what

The sun for energy

In the reaction mgcl2 plus 2koh mgoh2 mgoh2 plus 2kcl if 3 moles mgcl2 are added to 4 moles koh what determined how much mgoh2 is made

The amount of Koh

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