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IrinaVladis [17]
3 years ago
13

Which radioactive isotope would take the least amount of time to become stable? rubidium-91 iodine-131 cesium-135 uranium-238

Chemistry
2 answers:
Masteriza [31]3 years ago
5 0
The answer is rubidium -91 because it takes a shorter time of 58.4 seconds to become stable.
DanielleElmas [232]3 years ago
5 0

Answer:

the answer is A

Explanation:

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Hi! help me please. CALCULATE THE NUMBER OF MOLECULES FOUND IN 8 MOL OF WATER?
kvasek [131]

Answer:

so the number of molecules in 8 moles of water is 4.8176×10^24

Explanation:

number of moles=8moles

avogadro's number=6.022×10²³

number of molecules=?

as we know that

number of moles=\frac{number of molecules}{avogadro's number}

substituting the equation

number of moles × avogdro's number=number of molecules

number of molecules=8moles×6.022×10²³

number of molecules=4.8176×10^24

i hope this will help you :)

4 0
3 years ago
Elements
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Answer:

elements are composed of

electrons with a little mass and negative charge

protons with mass and positive charge

neutrons with mass and no charge

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How many core electrons does argon have?
Artemon [7]
10 core electrons are in argon.
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How many grams of chlorine are required in order to consume 100g of sodium chloride?
11111nata11111 [884]

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92.1 g

Explanation:

3 0
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Which is not an indicator for a chemical change?
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