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3 years ago

Which term best describes a nuclear chain reaction?. A)self-sustaining. B)weak. C)non-explosive

Chemistry

2 answers:

AURORKA [14]3 years ago

7 0

I took the Earth Science Nuclear Energy Quiz and the correct answer is self-sustaining.

I hope this helps you!

Allisa [31]3 years ago

6 0

Since we're talking about a chain reaction, I think this would be a) self-sustaining. Chain reactions are not usually described as "weak" and can be highly explosive depending upon the compounds (think Uranium!). The first (artificial) self-sustaining nuclear reaction is attributed to Enrico Fermi in 1942. Here's a bit of history: http://www.atomicarchive.com/History/firstpile/firstpile_01.shtml

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How many moles of water are produced from 15 moles of oxygen?

Grace [21]

Answer:

30 moles

Explanation:

Water is H2O, meaning there is 2 Hydrogen atoms and 1 Oxygen atom. Oxygen is O2, because it is a diatomic molecule. (Hydrogen is also a diatomic molecule, so H2)

The equation, balanced, would have to be: 2H2 + O2 -----> 2H2O

I multiply 15 moles O2 by the molar ratio of (hydrogen/oxygen)

15 mol. O2 * (2 mol. H2/1 mol O2) = 30 moles of water

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3 years ago

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Elena L [17]

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3 years ago

In an experiment to determine how to make sulfur trioxide, a chemist combines 32.0 g of sulfur with 50.0 g of oxygen. She finds

LuckyWell [14K]

Answer:

The chemist needs to react 40 g of sulfur with 60 g of oxygen to make 100 g of sulfur trioxide.

Explanation:

2S (s) + 3O₂ (g) → 2SO₃ (g)

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x + y → 100 g

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n _______ 100g

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3 years ago

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andreyandreev [35.5K]

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