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chubhunter [2.5K]
3 years ago
14

If 15.0 liters of neon at 25.0 °C is allowed to expand to 25.0 liters, what must the new temperature in Celsius be to maintain c

onstant pressure?
Chemistry
1 answer:
ankoles [38]3 years ago
8 0

Answer:

35

Explanation:

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How many different types of toxins do molds make that can end up on our food and in our bodies?
Elis [28]

Answer:

I think it's more than 100,000 mold

4 0
2 years ago
About 75% of living matter is made up of which two essential chemicals?
lions [1.4K]

calcium,phosphorus,potassium,and sulfer

3 0
3 years ago
Read 2 more answers
PLEASE HELP DUE SOON
jonny [76]

Answer:

This is all true if the atom has to be neutral.

Also what does V mean?

Helium: one shell with 2 neutrons and 2 protons in the center, with 2 electrons in the first shell.

Lithium: two shells with 4 neutrons and 3 protons in the center, with 2 electrons in the first shell, and 1 electron in the second shell.

Nitrogen: two shells with 7 neutrons and 7 protons in the center, with 2 electrons in the first shell, and 5 electrons in the second shell.

Flourine: two shells with 9 protons and 10 neutrons in the center, with 2 electrons in the first shell, and 7 electrons in the second shell.

Neon: two shells with 10 neutrons and 10 protons in the center, with 2 electrons in the first shell, and 8 electrons in the second shell.

Boron: two shells with 6 neutrons and 5 protons in the center, with 2 electrons in the first shell, and 3 electrons in the second shell.

3 0
2 years ago
In order to calculate the mass of an element in a given mass of a compound the mass of the compound is multiplied by the mass
Allushta [10]
Molar mass is the mass of a given substance divided by the amount of that substance, measured in g/mol.
7 0
3 years ago
How many molecules are present in 4.21 moles of HBr?​
salantis [7]

Answer:

The answer is

<h3>2.53 × 10²⁴ molecules</h3>

Explanation:

The number of molecules present can be found by using the formula

<h3>N = n × L</h3>

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

N = 4.21 × 6.02 × 10²³

We have the final answer as

<h3>2.53 × 10²⁴ molecules</h3>

Hope this helps you

6 0
3 years ago
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