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WINSTONCH [101]
3 years ago
7

C. 6.726 x 104 g = standard notation

Chemistry
1 answer:
Vlad [161]3 years ago
6 0

Answer:

6.99504 x 10^{2}

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10 points. Please help.
ratelena [41]

Answer:

-191.7°C

Explanation:

P . V = n . R . T

That's the Ideal Gases Law. It can be useful to solve the question.

We replace data:

2.5 atm . 8 L = 3 mol . 0.082 L.atm/mol.K . T°

(2.5 atm . 8 L) / (3 mol . 0.082 L.atm/mol.K) = T°

T° = 81.3 K

We convert T° from K to C°

81.3K - 273 = -191.7°C

6 0
3 years ago
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Why is it important for scientists to use the scientific method?
MakcuM [25]

Explanation:

It <em><u>provides an objective, standardized approach to conducting experiments</u></em> and, in doing so, improves their results. By using a standardized approach in their investigations, scientists can feel confident that they will stick to the facts and limit the influence of personal, preconceived notions.

I hope this helps you out!

4 0
3 years ago
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The arrangement of electrons in the orbitals of an atom
MrRa [10]
The answer is electron configuration. 
6 0
3 years ago
=:)
german

Answer:The Law of Conservation of Mass simply states that the total amount of mass should not change in a chemical reaction that is isolated (no other objects can enter the reaction). The total mass of the reactants must be equal to the total mass of the products. Thus, the correct estimate of the amount of oxygen used in the interaction is the difference between 133 g and 29 g.

Explanation: I hope this helped!

8 0
3 years ago
3. Which of the following is the correct notation for an isotope with 3 protons and 5 neutrons?
DENIUS [597]

Answer:

option c

Explanation:

neutros equal to mass num - atomic num

4 0
3 years ago
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