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Alika [10]
3 years ago
7

The center portion of the atom that contains the protons and neutrons is called the _____? nucleus

Chemistry
1 answer:
Virty [35]3 years ago
3 0
It's called the atomic mass
You might be interested in
The volume of a gas is 550 mL at 960 mm Hg and 200.0 C. What volume
Masja [62]

Answer:

The volume will be 568.89 mL.

Explanation:

Boyle's law says that "The volume occupied by a given gaseous mass at constant temperature is inversely proportional to pressure"

Boyle's law is expressed mathematically as:

Pressure * Volume = constant

or P * V = k

Gay-Lussac's law indicates that when there is a constant volume, as the temperature increases, the pressure of the gas increases. And when the temperature is decreased, the pressure of the gas decreases. That is, the pressure of the gas is directly proportional to its temperature. Gay-Lussac's law can be expressed mathematically as follows:

\frac{P}{T}=k

Where P = pressure, T = temperature, K = Constant

Finally, Charles's law indicates that as the temperature increases, the volume of the gas increases and as the temperature decreases, the volume of the gas decreases. In summary, Charles's law is a law that says that when the amount of gas and pressure are kept constant, the quotient that exists between the volume and the temperature will always have the same value:

\frac{V}{T}=k

Combined law equation is the combination of three gas laws called Boyle's, Charlie's and Gay-Lusac's law:

\frac{P*V}{T} =k

Studying an initial state 1 and a final state 2, it is fulfilled:

\frac{P1*V1}{T1} =\frac{P2*V2}{T2}

In this case:

  • P1= 960 mmHg
  • V1= 550 mL
  • T1= 200 C= 473 K (being 0 C=273 K)
  • P2= 830 mmHg
  • V2= ?
  • T2= 150 C= 423 K

Replacing:

\frac{960 mmHg*550 mL}{473K} =\frac{830 mmHg*V2}{423 K}

Solving:

V2=\frac{423 K}{830 mmHg} *\frac{960 mmHg*550 mL}{473K}

V2= 568.9 mL

<u><em>The volume will be 568.89 mL.</em></u>

4 0
3 years ago
Chemical _____<br> energy is the energy stored in the chemical<br> bonds.
GrogVix [38]
chemical reactions...... uh i think lol
4 0
3 years ago
Read 2 more answers
Claim: If I brush my teeth everyday, then I won't get cavities.
Rom4ik [11]
The dependent variable is i won’t get cavities
4 0
3 years ago
Read 2 more answers
What are the changing variables in, costant variables, formula, and whether or not its direct or inverse for boyle's, charles',
castortr0y [4]
Boyle's Law: The relationship between a gas' volume and pressure, where the temperature is assumed to be constant. The relationship is an inverse one and the formula is P₁V₁ = P₂V₂

Charles' Law: The relationship between a gas' volume and temperature, where pressure is assumed to be constant. The relationship is a linear one and the formula is V₁ ÷ T₁ = V₂ ÷ T₂.

Gay-Lussac's Law: The relationship between temperature and pressure, where volume is assumed to be constant. The relationship is a linear one and the formula is P₁ ÷ T₁ = P₂ ÷ T₂.

Combined Law: Boyle's, Charles', and Gay-Lussac's laws all combined, where all the variables are changing. I'm unsure of what the relationship is but the formula is P₁V₁/T₁ = P₂V₂/T₂.

*Note: The subscripts just indicate the original amount to the new amounts.

3 0
3 years ago
This refers to the speed of an object at a specific moment in time​
Marina CMI [18]

Answer:

Instantaneous speed is the speed of an object at a specific moment in time

8 0
3 years ago
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