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Vedmedyk [2.9K]
4 years ago
8

Please help, what does this mean?

Chemistry
1 answer:
klasskru [66]4 years ago
3 0

Answer:

A. 206 82Pb.

B. 214 82Pb.

C. 210 82Pb.

Explanation:

From the diagram given in question above, we can see that the parent nucleus is undergoing alpha decay.

This implies that the daughter nuclei obtained will have a decrease of 4 in the mass number and a decrease of 2 in the atomic number.

Please see attached photo on how to solve the question.

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calculate the atomic mass of element X, if it has 2 naturally occurring isotopes with the following masses and natural abundance
jeka57 [31]
Hey there!

To find this, you should:

1) multiply the percentage (but in a decimal form) of each isotope by the mass.
2) add all your masses together
3) make sure to check for significant figures and you’re done!

Hope this helps :)
4 0
3 years ago
Indicate the number of significant figures in the measured number 0.0020 <br> A. 4<br> B. 5<br> C. 2
Sergio [31]

<u>Answer:</u>

The correct answer option is C. 2.

<u>Explanation:</u>

We are given the number '0.0020' and we are to indicate the number of significant figures in the given measured number.

According to the rules of significant figures, numbers that are non-zero, zeros between any two significant numbers and the ending zeros in the decimal position are categorized as significant figures.

Since there is one non-zero number and one ending zero in the decimal position, therefore 0.0020 has 2 significant figures.

6 0
4 years ago
Why blood capillary walls differ from veins and arteries​
Mashcka [7]

Answer: Capillary walls main function is to exchange materials between the blood and tissue cells, While Arteries carry blood away from the heart to parts of your body like your lungs for instance, and your Veins carry blood back to your heart.

I hope this helps :)

Explanation:

5 0
3 years ago
10. What is the function of mitochondria?<br>​
alex41 [277]

Mitochondria is the site of ATP synthesis in eukaryotic cell during aerobic respiration. It regulates the biochemical processes of the cell and helps in generation of co enzymes as sulphur and iron.

Explanation:

Mitochondria is a cell membrane bound organelles present in cytoplasm of eukaryotic cells.

The major roles of mitochondria in eukaryotic cell is to synthesize ATP by cellular respiration. It also regulates the metabolism or biochemical processes of the cell.

Mitochondria also aids in generating the iron and sulphur which acts as a coenzyme in several biochemical reactions.

The electron transport chain takes place in inner mitochondrial membrane.

There are 2 aerobic phases of cellular respiration those are Kreb's cycle and electron transport chain. The machinery for Kreb's Cycle is in matrix. The ETC is present as embedded in the inner membrane of matrix.

The cellular compartment of mitochondria performs following functions:

The space in intermembrane has electron transport chain and holds ATP synthase (enzyme required for

The cristae is a finger like projection which increases surface area for increase ATP synthesis.

In matrix of the mitochondria the Electron transport takes place.

In Kreb's cycle mitochondria aids in production of NADH and GTP. Also, synthesis of phospholipid takes place in mitochondria.

5 0
4 years ago
Does carpet have molecules
andreev551 [17]

Answer:

Yes

The simple answer is yes. Almost everything has atoms and molecules consisting in it. The answer is yes. Hope it helps!

7 0
3 years ago
Read 2 more answers
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