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kotegsom [21]
3 years ago
10

the atomic number is the number of protons, but in a neutral atom it is also the number of _____. A. none of these B. electrons

C. neutrons D. nuclei​
Chemistry
1 answer:
aksik [14]3 years ago
6 0

Answer:

Electrons

hope it helps

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Provide the electronic structure diagram of propene showing all molecular orbitals​
exis [7]

Answer:

Explanation:The pi-molecular orbitals in propene (CH3-CH=CH2) are essentially the ... This central carbon thus provides two p-orbitals – one for each pi bond – and these two different p-orbitals have to be perpendicular, leading to a twisted structure as shown: ... It all comes down to where the location of the electron-deficient carbon  

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3 years ago
6. Which of the following statements correctly describes what happens to the diaphragm during an
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Answer is B.

As the diaphragm contracts and flattens, it increases the volume of the thorax where the lungs are located. This results in a decrease in pressure (Boyle’s Law, if you know it) that creates a pressure gradient from outside to inside. This is what causes air to move into the lungs.
3 0
3 years ago
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The change in internal energy for the combustion of 1.0 mol of octane at a pressure of 1.0 atm is -5084.1 kj . f the change in e
TEA [102]

<u>Given:</u>

Change in internal energy = ΔU = -5084.1 kJ

Change in enthalpy = ΔH = -5074.3 kJ

<u>To determine:</u>

The work done, W

<u>Explanation:</u>

Based on the first law of thermodynamics,

ΔH = ΔU + PΔV

the work done by a gas is given as:

W = -PΔV

Therefore:

ΔH = ΔU - W

W = ΔU-ΔH = -5084.1 -(-5074.3) = -9.8 kJ

Ans: Work done is -9.8 kJ


6 0
3 years ago
PLEAS HELP ASAP!!! Which of these statements best explains why the running costs for geothermal power plants are very low?
natima [27]
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Use the IUPAC nomenclature rules to give the name for this compound - Al2S3.
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