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ICE Princess25 [194]
2 years ago
12

Imagine the following scenario involving marbles as "radioactive isotopes".

Chemistry
1 answer:
sveta [45]2 years ago
8 0

Answer:

1 million years

Explanation:

The half life of a radioactive isotope refers to the time it takes for the radioactive isotope to decay to half of its original amount.

The half life of a radioactive isotope is independent of the amount of starting material. Hence, whether the amount of starting material is small or large, the half life of the substance remains the same.

Hence the half life of 2 green marbles and 500,000 green marbles is 1 million years.

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10 moles of carbon dioxide has a mass of 440 g. What is the relative formula mass of carbon dioxide?
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Explanation: The formular for finding Moles is ;

Moles =  Mass / Molar Mass or Formular Mass.

Base on this question; Moles = 10, Mass = 440g, and Formular Mass = ?

Making 'Formular Mass', subject of the formular; we thus have;

Formular mass = Mass / Moles = 440/ 10 = 44g

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3 years ago
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How many atoms of fluoride are there in one molecule of nitrogen trifluoride?
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6 0
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