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3 years ago

What is a factor that can influence the rate of a nuclear decay reaction?

Chemistry

1 answer:

Viktor [21]3 years ago

7 0

the stability of the radioactive element

Explanation:

The stability of a radioactive element can influence the rate of nuclear decay reaction. Pressure, temperature and concentration only affects chemical changes. These factors would not have any effect on radioactive decay of an element.

Every atomic nucleus have a specific neutron/proton ratio which ensures the stability of the nucleus.
Any nucleus that deviates from the stability ratio will continue to split until it achieves stability.
The more unstable a nucleus is, the faster it decays.
This is the basis of radioactive decay of elements.

Learn more:

radioactivity brainly.com/question/10125168

radioactive brainly.com/question/4207569

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A phosphate buffer is involved in the formation of urine. The developing urine contains H2PO4 and HPO42- in the same concentrati

Katen [24]

Answer:

The ionization equation is

$H_{2}PO_{4}^{-} +H_{2}O$ ⇄ $HPO_{4}^{-2} +H_{3}O^{+}$ (1)

Explanation:

The ionization equation is

$H_{2}PO_{4}^{-} +H_{2}O$ ⇄ $HPO_{4}^{-2} +H_{3}O^{+}$ (1)

As the Bronsted definition sais, an acid is a substance with the ability to give protons thus, H2PO4 is the acid and HPO42- is the conjugate base.

The Ka expression is the ratio between the concentration of products and reactants of the equilibrium reaction so,

$Ka = \frac{[HPO_{4}^{-2}] [H_{3}O^{+}]}{[H_{2}PO_{4}^{-}] [H_{2}O]} = 6.2x10^{-8}$

The pKa is

$-Log (Ka) = -Log (6.2x10^{-8}) = 7.2$

The pKa of H2CO3 is 6,35, thus this a stronger acid than H2PO4. The higher the pKa of an acid greater the capacity to donate protons.

In the body H2CO3 is a more optimal buffer for regulating pH due to the combination of the two acid-base equilibriums and the two pKa.

If the urine is acidified, according to Le Chatlier's Principle the equilibrium (1) moves to the left neutralizing the excess proton concentration.

3 0

4 years ago

Convert 86,750,000,000 to scientific notation

Yakvenalex [24]

Answer:

8.675 *10^10

Explanation:

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4 years ago

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How many moles of hci are needed to form 230 moles of ci2?

LekaFEV [45]

<span>The answer is 335 dm³.</span>

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3 years ago

This circuit shows a battery and wires connected to a lightbulb. The chemical energy in the battery is converted to:

____ [38]

Answer:

B. electric energy then chemical energy

Explanation:

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2 years ago

What type of bonds do compounds formed from non metal consist of?

GuDViN [60]

Compounds formed from non-metals consist of molecules. The atoms in a molecule are joined together by covalent bonds. These bonds form when atoms share pairs of electrons.

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3 years ago