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3 years ago

PLEASE HELP ME ITS DUE IN 25 MINUTES True or false iron and nickel are less dense than silicates ?

Chemistry

2 answers:

Pani-rosa [81]3 years ago

6 0

False, iron and nickel is apart of the core in the earth. meaning it’s more dense that silicates.

just olya [345]3 years ago

5 0

The answer is false
Iron and nickel is more dense

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Answer:

1.40 atm is the pressure for the gas

Explanation:

An easy problem to solve with the Ideal Gases Law:

P . V = n . R .T

T° = 370K

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n = 0.8 mol

Let's replace data → P . 17.3L = 0.8mol . 0.082L.atm/mol.K . 370K

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Answer:

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$moles = \frac{Mass\ taken}{Molar\ mass}$

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3 years ago

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Answer:

22:

Formular:

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23:

Same element is represented by same number of protons. 

Answer:

6 protons. 6 protons

7 neutrons. 8 neutrons

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