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fiasKO [112]
3 years ago
11

Which of the following is a vapor? steamhidrógen oxygen helium​

Chemistry
1 answer:
Scrat [10]3 years ago
7 0
Helium bc when u vape it goes into it lungs but also bringing helium at the same time.
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Write a question here it’s simple.
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what type of question?

Explanation:

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What is not represented by a balanced chemical equation?
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3 years ago
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The half-life of gold-198 is 2.7 days. After
Pie

Answer: 8.1 days

Explanation:

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant

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a = let initial amount of the reactant = x

a - x = amount left after decay process= \frac{x}{4} 

a) to find rate constant

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

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8 0
3 years ago
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