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suter [353]
3 years ago
13

Describe the shapes and relative energies of the s, p, d, and f atomic orbitals. (3 points) Be sure you address both the shapes

of each atomic orbital and the relative energy for each orbital. Be sure to use ACE format to answer this question. This type of problem came from unit 3.
Chemistry
1 answer:
Makovka662 [10]3 years ago
6 0

Answer:

According to the subshells, the  ns subshell has a sphere-like shape, and on average, lower energy than the rest of the subshells on the same quantum level  

The np subshell has two lobes opposite the origin, and on average has more energy than a ns subshell since it has one more angular node, and thus  np electrons are less core-like (and further away from the nucleus).

n d orbitals have five spatial orientations:

and n f orbitals have seven spatial orientations

The energies are on average in increasing order for the same energy level , n as follows,

nS < nP < nD < nF

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Which statement best describes the process of nuclear fusion?
victus00 [196]

Answer:

a. Smaller nuclei combine to make a larger nucleus.

Explanation:

Nuclear fusion is the process by which several atomic nuclei of similar charge bind and form a heavier nucleus.

In order for fusion to occur, an important energy barrier produced by electrostatic force must be overcome. Over long distances, two nuclei repel each other due to the electrostatic repulsion force between their protons, positively charged. However, if two nuclei can be approached sufficiently, due to the strong nuclear interaction, which is greater over short distances, electrostatic repulsion can be overcome, and fusion takes place.

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4 years ago
Which two transitions can magma undergo?
UNO [17]
Crystallization above the ground and crystallization below the ground
6 0
3 years ago
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The combustion of glucose (c6h12o6) with oxygen gas produces carbon dioxide and water. this process releases 2803 kj per mole of
V125BC [204]

Answer:- 335 kcal of heat energy is produced.

Solution:- The balanced equation for the combustion of glucose in presence of oxygen to give carbon dioxide and water is:

C_6H_1_2O_6+6O_2\rightarrow 6CO_2+6H_2O

From given info, 2803 kJ of heat is released bu the combustion of 1 mol of glucose. We need to calculate the energy produced when 3.00 moles of oxygen react with excess of glucose.

We could solve this using dimensional analysis as:

3.00mol O_2(\frac{1mol glucose}{6mol O_2})(\frac{2803 kJ}{1mol glucose})

= 1401.5 kJ

Now, let's convert kJ to kcal.

We know that, 1kcal = 4.184kJ

So, 1401.5kJ(\frac{1kcal}{4.184kJ})

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Hence, 335 kcal of heat energy is produced by the use of 3.00 moles of oxygen gas.


8 0
3 years ago
A rigid tank contains 0.66 mol of oxygen (O2). Find the mass of oxygen that must be withdrawn from the tank to lower the pressur
dsp73

Answer:

12.8 g of O_{2} must be withdrawn from tank

Explanation:

Let's assume O_{2} gas inside tank behaves ideally.

According to ideal gas equation- PV=nRT

where P is pressure of O_{2}, V is volume of O_{2}, n is number of moles of O_{2}, R is gas constant and T is temperature in kelvin scale.

We can also write, \frac{V}{RT}=\frac{n}{P}

Here V, T and R are constants.

So, \frac{n}{P} ratio will also be constant before and after removal of O_{2} from tank

Hence, \frac{n_{before}}{P_{before}}=\frac{n_{after}}{P_{after}}

Here, \frac{n_{before}}{P_{before}}=\frac{0.66mol}{43atm} and P_{after}=17atm

So, n_{after}=\frac{n_{before}}{P_{before}}\times P_{after}=\frac{0.66mol}{43atm}\times 17atm=0.26mol

So, moles of O_{2} must be withdrawn = (0.66 - 0.26) mol = 0.40 mol

Molar mass of O_{2} = 32 g/mol

So, mass of O_{2} must be withdrawn = (32\times 0.40)g=12.8g

7 0
3 years ago
Do ionic or covalent substances tend to produce more ions in solution? ...?
sasho [114]
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8 0
4 years ago
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