Which of the following sets of quantum numbers is not allowed?
A.) n=3, l=2, ml=-2
B.) n=4, l=3, ml=-3
C.) n=2, l=1, ml=-1
D.) n=2.5, l=0, ml=0
E.) n=3, l=2, ml=-1

Answer:

Explanation:

Why +4?

Answer:

2.567 litres

Explanation:

I dont have a proper explanation sorry

Answer:

4 or 3 atoms; leaning towards 4 more

Explanation:

Answer:

3 atoms

Explanation:

The mass of the Pyrex glass that absorbs 1940J of energy is 79.52grams.

The mass in a calorimetry procedure can be calculated using the following formula:

Q = mc∆T

Where;

According to this question, an unknown mass of each of the following substances, initially at 23.0∘C , absorbs 1940 J of heat. The final temperature is recorded as indicated. The mass can be calculated as follows:

1940 = m × 0.753 × (55.4°C - 23.0°C)

1940 = 24.39m

m = 79.52grams.

Therefore, 79.52grams is the mass of the pyrex glass.

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Answer:

concentration is the abundance of a constituent divided by the total volume of a mixture.

Explanation:

hope this helps <33

have a good afternoon:)

and also can i have brainliest plz? :D

Answer:

Only C. is wrong else every option is correct.

Explanation:

Hope this helps you. If you want explanation then ask in comments. Good luck!

The final pressure in the container if the temperature remains constant is 68.3 kPa.

Given the following data;

To find the final pressure in the container if the temperature remains constant, we would use Boyle's Law:

Mathematically, Boyle's law is given by the formula;

[tex]P_1V_1 = P_2V_2[/tex]

Where;

Substituting the values into the formula, we have;

[tex]205[/tex] × [tex]4 =[/tex] [tex]12P_2[/tex]

[tex]820 = 12P_2\\\\P_2 = \frac{820}{12}[/tex]

Final pressure, P2 = 68.3 kPa

Therefore, the final pressure in the container if the temperature remains constant is 68.3 kPa.

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Answer: a) sp and sp hybrid orbitals:

180 degrees

(b) sp and sp hybrid orbitals:

es

120 degrees

(c) sp and sp2 hybrid orbitals:

109.5 degrees

Explanation:

The angle between the following two hybrid orbitals on the same atom is sp and sp hybrid orbitals: 180°, sp and sp hybrid orbitals: 120° and sp and sp2 hybrid orbitals: 109.5°

Hybrid orbitals are defined as the outcome of a model that generates a new set of orbitals by combining atomic orbitals on a single atom.

It can also be defined as a form of atomic orbital that emerges when two or more atomic orbitals of an isolated atom mix.

It can be defined as the forming new atomic orbitals by combining two or more common atomic orbitals.

The process which forms hybrid orbitals are known as hybridization.

There are mainly five types of hybridization.

Thus, the angle between the following two hybrid orbitals on the same atom is sp and sp hybrid orbitals: 180°, sp and sp hybrid orbitals: 120° and sp and sp2 hybrid orbitals: 109.5°

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Answer:

that element is likely to be a non metaland a gas

If 0.400 moles CO and 0.400 moles O2 completely react, 17.604 grams of CO2 would be produced.

First, let us look at the balanced equation of reaction:

[tex]2CO + O_2 ---> 2CO_2[/tex]

According to the equation, the mole ratio of CO and O2 is 2:1. But in reality, the mole ratio supplied is 1:1. Thus, CO is the limiting reactant while O2 is in excess.

Also from the equation, the ratio of CO consumed to that of CO2 produced is 1:1. Thus, 0.400 moles of CO2 would also be produced from 0.400 moles of CO.

Recall that: mole = mass/molar mass

Therefore, the mass in grams of CO2 that would be produced from 0.400 moles can be calculated as:

    Mass = mole x molar mass

                 = 0.400 x 44.01

                       = 17.604 grams

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Answer:

chemical properties

Explanation:

so EZ

Answer:

B. A body at rest will stay at rest until it is acted upon by another object

Explanation:

Newton's first law states that if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.

Answer:

Palladium

Explanation:

Answer:

thrieidjnfkoeow wlfofj3v3koeud3838rbcjr9r8enebbfjfddndndnd

type this code in command prompt and your computer will get crashed

Answer:

First column

Explanation:

In most cases, the independent variable (that which you purposefully change) is in the left column, the dependent variable (that which you measure) with the different trials is in the next columns, and the derived or calculated column (often average) is on the far right.

Answer:

Ionic compounds conduct electricity when molten or in aqueous solution, because their ions are free to move from place to place. Ionic compounds cannot conduct electricity when solid, as their ions are held in fixed positions and cannot move.

Explanation:

Pls mark me as the brainlest!!,

Answer:

See below

Explanation:

2C2H6 + 7O2 = 4CO2 + 6H2O

2C2H2 + 5O2 = 4CO2 + 2H2O

A lot of this is trial and error.  I start from left to right.  For the first reaction, you had

C2H6 + O2  =  CO2  +  H2O

You have 2 carbons on the left so you can try adding a 2 in front of the carbons on the right and keep going from there.  Now you have

C2H6  +  O2  =  2CO2  + H2O

You now have 2 C on each side.  C2 is the same as 2C.

The next step is to look at the hydrogens on the left.  You have 6 so you need 6 on the right.  You can add a 3 in front of the H on the right.  The H already has a subscript of a 2 so having the 3 in front will now make it 6H.  You now have this

C2H6  +  O2  =  2CO2  +  3H2O

So your C are equal (2 on each side) and your H is equal (6 on each side).  All that is left is the O.  So far you have 2 on the left but you have 7 on the right (4 from the 2CO2 and 3 more from 3H2O).  Since you have an even number on one side and an odd number on the other, there is no way to make this work.  So it's time to start over.

My next step was to put a 2 in front of C2H6 and keep going as we did above.  Start with this

2C2H6   + O2  = CO2  + H2O

You have 4 C on the left.  So you need to add a 4 in front of CO2 to get 4 C on the right.  Now you have this

2C2H6  +  O2  =  4CO2  +  H2O

Now on the left you have 12 H (2 in front times the 6 subscript on the H).  You need to have 12 on the right.  We can get that by putting a 6 in front of the H2O ( again the 6 in front times the 2 subscript of the H is 12 total).  You have this now

2C2H6  +  O2  = 4CO2  +  6H2O

You now have 4 C on both sides, 12 H on both sides.  All that is left now is the O.

On the right side, you have a total of 14 ( 8 from the 4CO2 and 6 from 6H2O).  So you'd need to add 7 in front of the O2 to make it 14.

You're done.  4 C on both sides, 12 H on both sides and 14 O on both sides.

The second equation I just did the same process.

Answer:

About 10.2 g Li₃N.

Explanation:

We are given the reaction:

[tex]\displaystyle \text{6 Li(s) + N$_2$(g) }\longrightarrow \text{2 Li$_3$N(s)}[/tex]

And we want to determine the amount of Li₃N that can be formed from 6.07 g of Li and an excess of nitrogen.

To convert from g Li to g Li₃N, we can: (1) convert from g Li to mol Li, (2) mol Li to mol Li₃N, and (3) mol Li₃N to g Li₃N.

Molecular weight of Li₃N:

[tex]\displaystyle \begin{aligned}\text{MW}_\text{Li$_3$N} & = (3 (6.94) + 14.01) \text{ g/mol} \\ \\ & =34.83\text{ g/mol} \end{aligned}[/tex]

This yields three ratios:

[tex]\displaystyle \frac{1 \text{ mol Li}}{6.94 \text{ g Li}}, \frac{2 \text{ mol Li$_3$N}}{6 \text{ mol Li}}, \text{ and } \frac{34.83 \text{ g Li$_3$N}}{1 \text{ mol Li$_3$N}}[/tex]

From the initial value, multiply:

[tex]\displaystyle 6.07 \text{ g Li} \cdot \frac{ 1 \text{ mol Li}}{6.94 \text{ g Li}} \cdot \frac{2 \text{ mol Li$_3$N}}{6 \text{ mol Li}} \cdot \frac{34.83 \text{ g Li$_3$N}}{1 \text{ mol Li$_3$N}} = 10.2\text{ g Li$_3$N}[/tex]

In conclusion, 10.2 g of Li₃N is formed from 6.07 g of Li and an excess of nitrogen.

Respuesta:

Las fuerzas intermoleculares que actúan entre las moléculas se clasifican en : Dipolos permanentes. Dipolos inducidos. Dipolos dispersos.

Explicación:

Dentro de una molécula, los átomos están unidos mediante fuerzas intramoleculares (enlaces iónicos, metálicos o covalentes, principalmente). Estas son las fuerzas que se deben vencer para que se produzca un cambio químico. Son estas fuerzas, por tanto, las que determinan las propiedades químicas de las sustancias.

Sin embargo existen otras fuerzas intermoleculares que actúan sobre distintas moléculas o iones y que hacen que éstos se atraigan o se repelan. Estas fuerzas son las que determinan las propiedades físicas de las sustancias como, por ejemplo, el estado de agregación, el punto de fusión y de ebullición, la solubilidad, la tensión superficial, la densidad, etc.

In the combustion of 28.0 g of gasoline, 1348.1 kilojoules of energy are released.          

To find the energy released, we need to convert the energy in kilocalories to kilojoules.

We need to remember that:

Hence, the energy in kJ is:

[tex] E = 322 \:kcal*\frac{4.1868 \:J}{1 \:cal}*\frac{1000 \:cal}{1 \:kcal}*\frac{1 \:kJ}{1000 \:J} = 1348.1 \:kJ [/tex]

Therefore, 1348.1 kilojoules of energy are released.

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Answer:

One of water's most significant properties is that it takes a lot of energy to heat it. Precisely, water has to absorb 4,184 Joules of heat (1 calorie) for the temperature of one kilogram of water to increase 1°C. For comparison sake, it only takes 385 Joules of heat to raise 1 kilogram of copper 1°C.

Explanation:

Explanation:

Its B) 0.105 enjoy youre day

Answer:

In the complete ionic equation, soluble ionic compounds and strong acids are rewritten as dissociated ions. write the ionic and net ionic equation for this equation: Ammonium Chloride + Sodium Hydroxide NH_4Cl + NaOH = NH_3 + H_2O + NaCl There are so many chemical reactions that occur around us that we classify them into different types.

Explanation:

Answer:

A compound is a substance that contains atoms of two or more different elements.

Explanation:

Please mark my answer no. 1

Answer:

The periodic table is composed of many elements.

Explanation:

1. it's in the name.

2. if you search up what is the periodic table made of (Not that I did) it will say elements.

Brainliest if you liked the answer please.

Answer:3.4 - 5.6

Explanation:

Answer:

D is the answer, 4 times 10 is 40