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ExtremeBDS [4]
3 years ago
7

Busca información acerca de si las siguientes sustancias son simples o

Chemistry
1 answer:
vazorg [7]3 years ago
7 0

Answer:

a) El cobre es un elemento químico de los denominados metales de transición. El cobre encabeza el grupo de los metales nobles: cobre, plata y oro. Los átomos de cobre tienen 29 protones y 29 electrones. El cobre tiene dos isótopos naturales estables: uno tiene 34 neutrones y el otro, 36. Es una sustancia simple

b) Los elementos químicos que componen el azufre es el fósforo y el cloro. Es una sustancia Simple.

c) El azucar o tambien llamado sacarosa (C12H22O11) esta compuesto de carbono, hidrogeno y oxigeno. Es una sustancia compuesta

d) Las fuentes principales de donde se obtienen los alcoholes son las siguientes: Fermentación de Carbohidratos: Los azucares y almidones, que a su vez provienen de los vegetales-caña de azúcar, cebada, maíz, etc-, al fermentar por acción de las levaduras producen alcohol etílico. Es una sustancia. Tanto el alcohol como la acetona son sustancias compuestas.

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Explain why the 4s sublevel fills before the 3d begins to fill as electrons are added.
tamaranim1 [39]

Answer: The energy of the 4-s subshell is lower than the energy of 3-d subshell.

Explanation:

During the filling of electrons in subshells, the lower energy levels are filled before the higher energy levels. Also known as Aufbau principle.

Energy of the sublevel = (n + l)

where : n = Principal quantum number

             l = Azimuthal quantum number(s=0,p=1,d=2,f=3)

Energy of 4-s subshell= (4+0) = 4

Energy of 3-d subshell=(3+2) = 5

Energy of 4-s subshell is lower than the energy of 3-d subshell, that is why 4s orbital is filled before the 3-d subshell.

4 0
3 years ago
Read 2 more answers
Which TWO statements describe the ocean floor giving brainliest
lesya [120]

Answer:

A and B

Explanation:Ap3x approved :)

6 0
3 years ago
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Be sure to answer all parts. Compounds a and b are isomers having molecular formula c5h12. Heating a with cl2 gives a single pro
Elden [556K]

Neo-pentane represents the Compound A while compound B is n-pentane.

After careful consideration we can say that compounds A and B are alkanes and also isomers of pentane. In chemistry, Isomers are defined as compounds having same empirical molecular formula but different structural formulas due to varying arrangement of atoms.

Now, as per the question statement, compound A gives a single monochlorination product upon heating with the molecule of chlorine i.e. Cl2 showing that the molecule is extremely symmetric. This molecule must be neo-pentane. Refer to image 1.

Similarly, Compound B forms 3 constitutional isomers after undergoing monochlorination. This compound must be n-pentane since three are 3 different types of carbon atoms in the structure. Refer to image 2.

If you need to learn more about neo-pentane click here:

brainly.com/question/20815247

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3 0
1 year ago
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Under what conditions of temperature and pressure is a gas least soluble in water
snow_tiger [21]

The conditions of temperature and pressure in which a gas least soluble in water is low pressure and high temperature.

<h3>What is Henry Law?</h3>

The amount of dissolved gas in a liquid is proportional to its partial pressure above the liquid, according to Henry's law.

From this law it is clear that:

  • As the pressure of the gas increases solubility of the gas on the liquid also increases.

But if the temperature of the liquid decreases then the solubility of the gas also increases.

Hence at low pressure and high temperature, gas is least soluble.

To know more about solubility of gas, visit the below link:

brainly.com/question/14747303

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7 0
2 years ago
Si se tiene 1mol de NO . cuantas moleculas de NO hay
kumpel [21]

if you have 1mol of NO. how many molecules of NO are there

Answer:

6.02 x 10²³ molecules

Explanation:

Given parameters:

Number of moles of NO = 1 mole

Unknown:

Number of molecules in NO;

Solution:

A mole of compound contains the Avogadro's number of particles.

  1 mole of a substance contains 6.02 x 10²³ molecules

So, 1 mole of NO contained 6.02 x 10²³ molecules

3 0
2 years ago
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