Summer School Chemistry Final Review | Baamboozle - Baamboozle

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Final Exam Review

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________________ is a reaction that involves the breaking apart of the nucleus.

fission

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Calculate the molar mass of potassium chlorate, .

122.551g

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How many atoms are found in a 6.5 g sample of copper?

6.16x10^22 atoms

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You conduct a laboratory investigation and produce 3.61 g of MgO. However, mathematically, you should have been able to produce 4.16 g. Calculate the percent yield.

86.8%

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Is AgCl soluble in water?

no

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Is CaS soluble in water?

yes

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Is PbI2 soluble in water?

no

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NH4CN

no

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How many moles are found in 3.33x10^23 molecules of carbon dioxide?

0.553

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Which form of radiation, if any, has the greatest penetrating power, and generally is the most dangerous?

gamma radiation

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Which of these particles has the greatest mass?

Beta particle

Positron

Alpha particle

Proton

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Which nuclei most readily undergo nuclear fission?

Very large nuclei, such as those of uranium atoms and plutonium atoms

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What part of an atom undergoes change during radioactive decay?

nucleus

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How does alpha decay affect the mass number of a nucleus?

Decreases by 4

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How much of a sample of radioisotope remains after one half-life?

Half after one half-life

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How much of a sample of radioisotope remains after two half-lives?

one quarter after two half-lives

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