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yanalaym [24]
3 years ago
10

Which sentence best describes part of the process for generating electricity in a nuclear power plant?

Chemistry
1 answer:
spayn [35]3 years ago
8 0

Answer:it is D

Explanation: it is only one that makes sense

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Which of the following pairs of quantum states of hydrogen has the biggest energy difference between the states?
KatRina [158]

Hear n = 1000 to n = 2 pairs of quantum states of hydrogen has the biggest energy difference between the states

A quantum state is a mathematical concept used in quantum physics that gives a probability distribution for the results of each potential experiment on a system. All that can be predicted about the behaviour of the system is exhausted by knowledge of the quantum state and the laws governing the system's evolution across time. Another quantum state is a combination of quantum states. All other quantum states are known as mixed quantum states, whereas pure quantum states are those that cannot be described as a combination of other states. A ray in a Hilbert space over the complex numbers can represent a pure quantum state, but density matrices, which are positive semidefinite operators acting on Hilbert spaces, can represent mixed states.To know more about ray, visit to: -brainly.com/question/17491571#SPJ4

8 0
1 year ago
1. A gas has a pressure of 799.0 mm Hg at 50.0 degrees C. What is the temperature at standard Pressure?
larisa [96]

Answer:

A = 674.33mmHg

B = 0.385atm

Explanation:

Both question A and B requires the application of pressure law which states that the pressure of a fixed mass of gas is directly proportional to its temperature provided that volume is kept constant.

Mathematically,

P = kT, k = P / T

P1 / T1 = P2 / T2 = P3 / T3 =.......= Pn/Tn

A)

Data:

P1 = 799mmHg

T1 = 50°C = (50 + 273.15) = 323.15K

P2 = ?

T2 = 273.15K

P1 / T1 = P2 / T2

Solve for P2

P2 = (P1 × T2) / T1

P2 = (799 × 273.15) / 323.15

P2 = 674.37mmHg

The final pressure is 674.37mmHg

B)

P1 = 0.470atm

T1 = 60°C = (60 + 273.15)K = 333.15K

P2 = ?

T2 = 273.15K

P1 / T1 = P2 / T2

Solve for P2,

P2 = (P1 × T2) / T1

P2 = (0.470 × 273.15) / 333.15

P2 = 0.385atm

The final pressure is 0.385atm

7 0
3 years ago
Read 2 more answers
During an experiment, the percent yield of calcium chloride from a reaction was 82.38%. Theoretically, the expected amount shoul
gregori [183]

Answer:

Actual yield = 86.5g

Explanation:

Percent yield = 82.38%

Theoretical yield = 105g

Actual yield = x

Equation of reaction,

CaCO₃ + HCl → CaCl₂ + CO₂ + H₂O

Percentage yield = (actual yield / theoretical yield) * 100

82.38% = actual yield / theoretical yield

82.38 / 100 = x / 105

Cross multiply and make x the subject of formula

X = (105 * 82.38) / 100

X = 86.499g

X = 86.5g

Actual yield of CaCl₂ is 86.5g

7 0
3 years ago
Why is it good practice to perform a mixed melting point determination at two different ratios of unknown to known materials in
My name is Ann [436]

The melting point of a particular compound is fixed and it is an important identification of an unknown compound. The practice to determine the melting point of an unknown material In different ratio with a known material is important to get the exact melting point of the unknown material. In different ratio the melting point of the unknown material will be fixed as the melting point of a pure material doesn't depend on the ratio in which they are mixed with other material. To get the exact melting point it is always good to get the melting point twice in different ratio.  

6 0
4 years ago
A model of an atom shows eight electrons in rings that represent different energy levels. How many electrons are in each energy
Scilla [17]

Answer:

The correct option is;

C. Two in the first energy level, six in the second energy level

Explanation:

The electrons in an atom are arrange in orbital shells which are situated at different levels within the structure of the, depending on the energy of the electron. Electrons with the least amount of energy are found in the shell closest to the nucleus of the atom which is the first energy level

The maximum number of electrons that can be found in a given an energy level is obtained with the following formula;

The number of electron = 2 × n²

Where;

n = The number of the different energy level

Therefore;

The maximum number of electrons in the first energy where n = 1 is given as follows;

The number of electron = 2 × 1² = 2 electrons

The maximum number of electrons in the second energy level where n = 2 is given as follows;

The number of electron = 2 × 2² = 8 electrons

Given that there are only 8 electrons in the atom, we therefore have, 2 electrons in the first energy level and the remaining 8 - 2 = 6 electrons in the second energy level.

3 0
3 years ago
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