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liq [111]
3 years ago
8

Naturally occurring copper has two isotopes, 63cu and 65cu. what is different between atoms of these two isotopes?

Chemistry
1 answer:
GaryK [48]3 years ago
5 0
The differences are <u>the number of neutrons</u> and the <u>atomic mass</u><u /><u />.

Copper-63 has an atomic mass of 63 amu, and has 34 neutrons.
Copper-65 has an atomic mass of 65 amu, and has 36 neutrons.
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Which formula contains only two elements? <br> 1)Bi(NO3)3<br>2)KOH<br>3)NaClO3<br>4)Al2S3
Marat540 [252]
Elements are made of one type of atoms. Elements have characteristic symbols for their identification.
1) Bi(NO₃)₃ - this is made of 3 elements - Bismuth , Nitrogen and oxygen
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3 0
3 years ago
The highest energy level of sodium contains ________ electron(s).
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3 years ago
Idk how to do this at all!!!
sergey [27]
Hello there!

I am not really sure which part you are talking about but let me answer some of them.

First, you need to read the information they gave you about glucose etc..

13- What is produced in photosynthesis?
"Photosynthesis is essential for all life on earth, because it provides food and oxygen."

Thus, the answer is: Photosynthesis produced food and oxygen.

14- What is the glucose used for?
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Thus, the answer is: The glucose used for energy and growth of the plants.

15- What is the oxygen used for?
"The oxygen produced is released into the air for us to breath."

Thus, the answer is: The oxygen used for us to breath.


I hope this helps!

Let me know if you have questions about the answer.

 
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