Answer:
A weak acid is an acid that partially dissociates into its ions in an aqueous solution or water. In contrast, a strong acid fully dissociates into its ions in water. At the same concentration, weak acids have a higher pH value than strong acids.
Explanation:
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The answer is Mixture. Two more substances put together but each retaining their own identity is a Mixture. They are t<span>wo or more substances dispersed in one another but each retaining their own identity.</span>
Answer:
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Explanation:
A certain radioactive isotope has a half life of one hour. I you start with 1.0 g of the material at 1:00 P. M. 0.5 grams will be present at 2:00 P.M. on the same day.
<h3>What is half Life ?</h3>
Half life is the amount of time required to reduce to one half of its initial value. The symbol of half life is
.
<h3 /><h3>How to calculate the quantity remaining when half life given ?</h3>
It is expressed as:
![N_{t} = N_{0} (\frac{1}{2})^{n}](https://tex.z-dn.net/?f=N_%7Bt%7D%20%3D%20N_%7B0%7D%20%28%5Cfrac%7B1%7D%7B2%7D%29%5E%7Bn%7D)
where,
N(t) = quantity remaining
N₀ = initial quantity
n = half life that have passed
Now put the values in above expression we get
![N_{t} = 1.0\ g \times (\frac{1}{2})^{1}](https://tex.z-dn.net/?f=N_%7Bt%7D%20%3D%201.0%5C%20g%20%5Ctimes%20%28%5Cfrac%7B1%7D%7B2%7D%29%5E%7B1%7D)
= ![\frac{1}{2} g](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%20g)
= 0.5 gram
Thus from the above conclusion we can say that A certain radioactive isotope has a half life of one hour. I you start with 1.0 g of the material at 1:00 P. M. 0.5 grams will be present at 2:00 P.M. on the same day.
Learn more about the Half life here: brainly.com/question/25750315
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