CCU4 Nuclear C

Multiple Choice

Boiling water is a

• physical change

• nuclear change

• chemical change

• magical change

Labelling

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4

0.44

0.22

0.11

0.33

2

3

Multiple Choice

As temperature increases the volume of a gas will ...

• increase

• decrease

• remain the same

Multiple Choice

As pressure increases the volume of a gas will ...

• increase

• decrease

• remain the same

Labelling

3) (Alpha)

The half-life of thorium-232 is 1.4 x 10¹⁰ years. If there are 12.50 g of the sample left after 4.2 x 10¹⁰ years, how many grams were in the original sample?   

                                  

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Labelling

1) (Beta) The half-life of potassium-42 is 12.4 hours. How much of a 750.g sample is left after 62.0 hours?

                                  

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Labelling

1) (Beta) Strontium-90 has a half-life of 28.8 years, how long will it take for 1.00 g of strontium-90 to decay to 0.03125 g?

                                  

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