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NISA [10]
3 years ago
7

Can you please help me with this question

Chemistry
1 answer:
myrzilka [38]3 years ago
4 0

Answer:

First blank: spiral arms

Second blank: center

Explanation:

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Isotopes of the same element have different numbers of<br> protons<br> electrons<br> neutrons
MrRa [10]

Answer:

Protons and electrons

Explanation:

They have a different number of neutrons giving them a different atomic weight while having the same charge

6 0
3 years ago
2.2 Chromium has four naturally-occurring isotopes: 4.34% of 50Cr, with an atomic weight of 49.9460 amu; 83.79% of 52Cr, with an
shutvik [7]

Answer:

Average atomic mass  = 51.9963 amu

Explanation:

Given data:

Abundance of Cr⁵⁰ with atomic mass= 4.34% ,  49.9460 amu

Abundance of Cr⁵² with atomic mass = 83.79%,  51.9405 amu

Abundance of Cr⁵³ with atomic mass =9.50%,  52.9407 amu

Abundance of Cr⁵⁴ with atomic mass  = 2.37%,   53.9389 amu

Average atomic mass = 51.9963 amu

Solution:

Average atomic mass = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass +....n)  / 100

Average atomic mass  = (4.34×49.9460)+(83.79×51.9405) +(9.50×52.9407)+ (2.37×53.9389) / 100

Average atomic mass =  216.7656 + 4352.0945 + 502.9367 +127.8352 / 100

Average atomic mass  = 5199.632 / 100

Average atomic mass  = 51.9963 amu

4 0
3 years ago
What are some examples of homogeneous mixtures
Ivanshal [37]

Answer:

Milk

Glue

Pudding

Paper

Plastic

Explanation:

3 0
3 years ago
Read 2 more answers
Pick 1 answer, please help!
olga nikolaevna [1]

Answer:

B

Explanation:

6 0
3 years ago
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What happens during mitosis?
Ludmilka [50]
A eukaryotic cell goes through nuclear division creating two identical daughter cells.
6 0
3 years ago
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