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vladimir2022 [97]
3 years ago
14

Heavy nuclides with too few neutrons to be in the band of stability are most likely to decay by what mode?

Chemistry
1 answer:
Margarita [4]3 years ago
6 0

Answer:

Positron emission

Explanation:

Positron emission involves the conversion of a proton to a neutron. This process increases the mass number of the daughter nucleus by 1 while its atomic number remains the same. The new neutron increases the number of neutrons present in the daughter nucleus hence the process increases the N/P ratio.

A positron is usually ejected in the process together with an anti-neutrino to balance the spins.

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The pressure of 8.40 L of nitrogen gas in a flexible container is decreased to one-half its original pressure, and its absolute
ollegr [7]

Answer:

33.6 L

Explanation:

From the question given above, the following data were obtained from:

Initial volume (V1) = 8.40 L L

Initial pressure (P1) = P

Initial temperature (T1) = T

Final pressure (P2) = one-half the original pressure = ½P

Final temperature (T2) = double the original temperature = 2T

Final volume (V2) =.?

Thus, the new volume of the gas can be obtained as follow:

P1V1/ T1 = P2V2 /T2

P × 8.40 / T = ½P × V2 /2T

P × 8.40 / T = P × V2 / 4T

Cross multiply

T × P × V2 = P × 8.40 × 4T

Divide both side by T × P

V2 = (P × 8.40 × 4T) /T × P

V2 = 8.40 × 4

V2 = 33.6 L

Thus, the new volume of the gas is 33.6 L

7 0
3 years ago
Which answer best defines solute ?
Bad White [126]

Answer:

a substance that dissolves in another substance

Explanation:

a substance into which another substance dissolves

4 0
3 years ago
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20 Points! (2) Which of the following statements are true about a strong base and a weak base at a pH of 11?
marshall27 [118]
The answer to this question is that <span>the strong base will require less HCl to bring the pH to 7 than the weak base. The string base ionizes completely so the [OH-] will be neutralized faster. The weak base has an equilibrium that will constantly shift</span> to compensate for any [OH-] loss, meaning more HCl will be needed to titrate it to lower pH.
5 0
4 years ago
How many sig figs are in 1401.00
matrenka [14]

Answer:

6   We know it is closer to 1401.00 than 1400.99 or 1401.01 therefor the 6 sig figs

Explanation:

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Creates a water and salt by this double replacement reaction.
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Both acid and base

Because

Acid + Base → Water + Salt

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3 years ago
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