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Stolb23 [73]
3 years ago
12

The activity of a radioactive substance depends on ?​

Chemistry
1 answer:
Lelechka [254]3 years ago
7 0

Answer:

The activity of a radioactive substance is measured in terms of the number of disintegrations a given radioactive sample undergoes in one second. ... More the active atoms present in the ample, more is the number of disintegrations that happen per second. It depends on the decay constant of the radioactive substance.

Explanation:

citation- https://www.quora.com/What-does-the-activity-of-a-radioactive-substance-depend-on

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tester [92]
<span>Which of the following lists characteristics of a lake and NOT a reservoir A. Artificial dam, fresh water B. natural dam, filled by runoff C. earth dam, salt water D. filled by erosion, cement dam
Answer is B:  natural dam,filled by runoff</span>
4 0
3 years ago
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Do you think your meal would allow your cells to sufficiently build your cell
expeople1 [14]

Answer:

Cells are the fundamental units of life ' the bricks from which all your. which are built of your cells, will become compromised, and you can. of these new cells from the nutrients you get in your food is one way. Let's take a look inside one of your cells and see what the nutrients really do.

Explanation:

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3 years ago
The final charge on each of the three separated spheres in part (b) is +3.0 μC. How many electrons would have to be added to one
marishachu [46]

Answer:

1.873\times 10^{13} electrons should be added to one of these spheres to make it electrically neutral.

Explanation:

Total charge on each sphere =  +3.0 μC =3\times 10^{-6} C

1 \mu C=10^{-6} C

In order to neutralize the positive charge equal magnitude of negative charge is to be added.

Total charge electrons, Q=  -3.0 μC =-3\times 10^{-6} C

Number of electrons = n

Charge on a single electron, e = -1.602\times 10^{-19} C

Q = n × e

-3\times 10^{-6} C=n\times (-1.602\times 10^{-19} C)

n=\frac{-3\times 10^{-6} C}{-1.602\times 10^{-19} C}=1.873\times 10^{13}

1.873\times 10^{13} electrons should be added to one of these spheres to make it electrically neutral.

4 0
3 years ago
Which element would you expect to behave the most like carbon (C)?
vesna_86 [32]

Answer:

A

Explanation:

Germanium and Carbon are in the same 14th group.

3 0
3 years ago
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A balloon is filled with 12 L of air at a pressure of 2 atm. What is the volume of the balloon if the pressure is changed to 3 a
mihalych1998 [28]

Answer:

8L

Explanation:

Using Boyle's law which states that the volume of a given mass of gas is inversely proportional to the pressure, provided temperature remains constant

P1V1= P2V2

P1 =  2atm, V1 = 12L ,

P2 = 3atm , V2 =

12 × 2 = V2 × 3

Divide both sides by 3

V2 = 24 ÷ 3

V2 = 8L

I hope this was helpful, please mark as brainliest

3 0
3 years ago
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