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saw5 [17]
3 years ago
5

What symbol is used for a beta particle?

Chemistry
2 answers:
Vinvika [58]3 years ago
6 0

Answer:

The first option is correct

marin [14]3 years ago
3 0

Answer:

The answer is A

Explanation:

There are two forms of beta decay, β− decay and β+ decay, which produce electrons and positrons respectively

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In a mixture of carbon dioxide in water ( a soft drink ) the Carbon Dioxide is the solute
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Answer:

true :)

Explanation:

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3 years ago
Can anybody help me with these 2 ohms law
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Can you explain what makes Earth habitable using science vocabulary words system & planetary geologist
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The partial pressure of O2 in air at sea level is 0.21atm. The solubility of O2 in water at 20∘C, with 1 atm O2 pressure is 1.38
adell [148]

Answer:

1.21x10^{-3} M

Explanation:

Henry's law relational the partial pressure and the concentration of a gas, which is its solubility. So, at the sea level, the total pressure of the air is 1 atm, and the partial pressure of O2 is 0.21 atm. So 21% of the air is O2.

Partial pressure = Henry's constant x molar concentration

0.21 = Hx1.38x10^{-3}

H = \frac{0.21}{1.38x10^{-3} }

H = 152.17 atm/M

For a pressure of 665 torr, knowing that 1 atm = 760 torr, so 665 tor = 0.875 atm, the ar concentration is the same, so 21% is O2, and the partial pressure of O2 must be:

P = 0.21*0.875 = 0.1837 atm

Then, the molar concentration [O2], will be:

P = Hx[O2]

0.1837 = 152.17x[O2]

[O2] = 0.1837/15.17

[O2] = 1.21x10^{-3} M

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3 years ago
What change causes a substance to change states of matter?
pochemuha
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