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ra1l [238]
3 years ago
10

Why is beryllium-8 different from beryllium-9 in terms of the nuclear particles?

Chemistry
1 answer:
Helen [10]3 years ago
6 0

Answer:

Beryllium-8 (8Be, Be-8) is a radionuclide with 4 neutrons and 4 protons. It is an unbound resonance and nominally an isotope of beryllium. It decays into two alpha particles with a half-life on the order of 10−16 seconds; this has important ramifications in stellar nucleosynthesis as it creates a bottleneck in the creation of heavier chemical elements. The properties of 8Be have also led to speculation on the fine tuning of the Universe, and theoretical investigations on cosmological evolution had 8Be been stable.

Explanation:

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What is the pH of 1.00 L of a buffer that is 0.110 M nitrous acid (HNO2) and 0.200 M NaNO2? (pKa of HNO2 = 3.40)
Andrei [34K]

Answer:

pH = 3.65    

Explanation:

given data

pKa of HNO2 = 3.40

nitrous acid (HNO2) = 0.110 M

NaNO2 = 0.200 M

to find out

What is the pH

solution

we get here ph for acidic buffer  that is express as

pH = pKa + log(salt÷acid)      ........................1

put here value and we get

pH = 3.40 + log(0.200÷0.110)

pH = 3.65    

4 0
4 years ago
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LUCKY_DIMON [66]

Answer:

man i sure wish u read the explanation and all of it

Explanation:

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Never gonna run around and desert you

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Your heart's been aching but you're too shy to say it

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Never gonna give you up

Never gonna let you down

Never gonna run around and desert you

Never gonna make you cry

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Never gonna give you up

Never gonna let you down

Never gonna run around and desert you

Never gonna make you cry

Never gonna say goodbye

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4 0
3 years ago
What are two ways to describe concentration? How do they differ from one another?
adell [148]

Answer:

no .........................

3 0
3 years ago
Read 2 more answers
Will mark Brainly us if you help me
ohaa [14]

Answer: ok, its C

Explanation: I used D=26.4* 3 to calculat it

5 0
3 years ago
WILL MARK BRAINLIEST
den301095 [7]
The answer is C. Life
Hope this helps! :)
7 0
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