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kipiarov [429]
3 years ago
13

How many particles are in 13.5 grams of Beryllium ?

Chemistry
2 answers:
cupoosta [38]3 years ago
6 0
9x10^23 .. this the answer
Marina86 [1]3 years ago
4 0

Explanation:

I don't know this answer what Hydrogen Helium lithium

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M=<br> V=432.6 mL<br> D=8.4 g/ml
Nitella [24]

Answer:

Explanation:

M=D times V

Answer-3,633.84g

Rounded Answer (correct sig figs)- 3600g

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3 years ago
3. What determines the mass number of an element?<br> The mumhor of nrotons
ArbitrLikvidat [17]

Answer: The number of protons and the number of neutrons determine an element's mass number.

Explanation:

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Which of the following claims may be made based on your observations? (You will recieve negative points for wrong answers.)
Ostrovityanka [42]

Answer:

D, E and F

Explanation:

About tetrachloro cobalt complexes, the following facts have been observed  

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About hexa aqua cobalt complexes, the following facts have been observed  

  • Color of the hexa aqua cobalt complexes is pink color.
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Based on above, the correct statements are:

The correct is chloro cobalt complex is blue and aqua cobalt  

complex is pink.  

The chloro complex is favored by heating.

If the chloro complex is a product, then the reaction must be endothermic.

The correct options are D, E and F.

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3 years ago
Which one is NOT part of the cell theory?
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<u>Answer:</u>

All living things are not made of cells.

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2 years ago
Nitrogen atoms are part of the structure of some organic molecules, such as all amino acids and some modified carbohydrates. Wha
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