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3 years ago

How many excited electron in the atom with an electron configuration of [kr]5s24d55p6 ?

Chemistry

1 answer:

IRISSAK [1]3 years ago

4 0

The ground-state electronic configuration follows the order of orbitals as shown in the first picture. So, we can deduce that the electronic configuration given is in order. However, each orbital must have a maximum number of electrons to be filled before it can move on to the next orbital. Since the d orbital must hold 10 electrons, that means that it should have held 5 electrons more. The missing 5 electrons were excited to the next 5p orbital. Thus, there are 5 excited electrons.

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Can you please help me and can you show your work please

natali 33 [55]

Answer:

1. 25 moles water.

2. 41.2 grams of sodium hydroxide.

3. 0.25 grams of sugar.

4. 340.6 grams of ammonia.

5. 4.5x10²³ molecules of sulfur dioxide.

Explanation:

Hello!

In this case, since the mole-mass-particles relationships are studied by considering the Avogadro's number for the formula units and the molar mass for the mass of one mole of substance, we proceed as shown below:

1. Here, we use the Avogadro's number to obtain the moles in the given molecules of water:

$1.5x10^{25}molecules*\frac{1mol}{6.022x10^{23}molecules} =25 molH_2O$

2. Here, since the molar mass of NaOH is 40.00 g/mol, we obtain:

$1.2mol*\frac{40.00g}{1mol} =41.2g$

3. Here, since the molar mass of C6H12O6 is 180.15 g/mol:

$45g*\frac{1mol}{180.15g}=0.25g$

4. Here, since the molar mass of ammonia is 17.03 g/mol:

$20mol*\frac{17.03g}{1mol}=340.6g$

5. Here, since the molar mass of SO2 is 64.06 g/mol:

$48g*\frac{1mol}{64.06g} *\frac{6.022x10^{23}molecules}{1mol} =4.5x10^{23}molecules$

Best regards!

5 0

3 years ago

Gas-to-liquid synfuel production can produce diesel, naptha and paraffin. The formation of these products usually involves _____

Goshia [24]

The best and most correct answer among the choices provided by the question is the second choice. The formation of gas-to-liquid synfuel usually involves the removal of carbon atoms from the fuel adding highly acidic substances such as hydrochloric acid. I hope my answer has come to your help. God bless and have a nice day ahead!

3 0

3 years ago

Read 2 more answers

A. If the mass of Hydrogen is 1 amu, what is the mass of Hydrogen in the reactant side of the equation above?

dimulka [17.4K]

Answer:

there are 4 hydrogen so

A.the mass of Hydrogen in the reactant side of the equation above is 1×4=4 amu.

B.the mass of Hydrogen on the product side of the equation above =1×4=4 amu.

Note: mass of reactant =mass of product.

7 0

3 years ago

Is a diamond a homogeneous or heterogeneous mixture or a substance

DerKrebs [107]

Answer:

heterogeneous

Explanation:

It's a heterogeneous mixture. Diamond is made of just one element: carbon. Each carbon atom in diamond is connected to four other carbon atoms, in a crystal that extends on and on. There are other forms of pure carbon where the atoms are bonded differently, notably charcoal and graphite.

5 0

3 years ago

A substance is composed of only one kind of atom and can't be separated into simpler substances or converted into another substa

mr Goodwill [35]

The correct answer among the choices given is option A. Elements are distinguished from compounds. An element is a pure chemical substance which is from a same atom while compounds are from different elements. It contains atoms of different elements.

5 0

3 years ago