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Firlakuza [10]
3 years ago
7

Is iron man made or natural

Chemistry
2 answers:
kifflom [539]3 years ago
6 0

Answer:

iron

Explanation:

Ipatiy [6.2K]3 years ago
4 0

Answer:

Iron is natural. Paper is man-made

Explanation:

You might be interested in
Cuando realizamos la "Estructura de
sergeinik [125]

Answer:

Electrones de valencia.

Explanation:

¡Hola!

En este caso, dado en química se conocen las estructuras de Lewis como representaciones gráficas de como los elementos están enlazados entre sí, debemos tener en cuenta que estos enlaces se forman entre los electrones de valenciam, los cuales son utilizados para su representación. Se sabe que los electrones de valencia son representados con puntos alrededor del elemento a través de puntos que se unen entre sí y son el número de electrons en la capa más externa de los elementos en cuestión; por ejemplo, cloro tiene 7 electrones de valencia, azufre tiene 6, hidrogeno 1, carbono 4 y así sucesivamente.

¡Saludos!

3 0
3 years ago
To separate liquids in a mixture of different liquids, each having different boiling points, one would use the separation techni
sleet_krkn [62]

Answer;

-Distillation

Explanation;

Distillation is a  technique that can be used to physically separate most homogeneous mixtures based on the difference in the boiling points of the substances involved.

A good example;  A flask hold liquids A, B, and C in a homogeneous mixture. The boiling points of A, B, and C are 130 C, 65 C, and 71 C, respectively. The flask is heated to 65C until all of liquid B is filtered out. The remaining mixture is heated to 71C until all of liquid C is filtered out, and only liquid A is left in the flask.

7 0
3 years ago
How many grams in 1.61 x 1023 molecules of water (H2O)
jeka57 [31]

Taking into account the definition of Avogadro's number and molar mass, 4.806 grams of water are present in 1.61×10²³ molecules.

<h3>Definition of Avogadro's Number</h3>

Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023×10²³ particles per mole. Avogadro's number applies to any substance.

<h3>Definition of molar mass</h3>

The molar mass of substance is a property defined as its mass per unit quantity of substance, in other words, molar mass is the amount of mass that a substance contains in one mole.

<h3>Mass of water</h3>

Taking into account the definition of Avogadro's Number, you can apply the following rule of three: if 6.023×10²³ molecules are contained in 1 mole of water, then 1.61×10²³ molecules are contained in how many moles of water?

amount of moles of water= (1.61×10²³ molecules× 1 mole)÷ 6.023×10²³ molecules

<u><em>amount of moles of water= 0.267 moles</em></u>

Now, taking into account the definition of molar mass, and knowing that the molar mass of water is 18 g/mole, you can apply the following rule of three: If by definition of molar mass 1 mole of the compound contains 18 grams, 0.267 moles of the compound contains how much mass?

mass= \frac{0.267 molesx 18 grams}{1 mole}

<u><em>mass= 4.806 grams</em></u>

Finally, 4.806 grams of water are present in 1.61×10²³ molecules.

Learn more about

Avogadro's Number:

brainly.com/question/11907018

brainly.com/question/1445383

brainly.com/question/1528951

molar mass:

brainly.com/question/5216907

brainly.com/question/11209783

brainly.com/question/7132033

brainly.com/question/17249726

#SPJ1

8 0
2 years ago
In an atom, the electrons orbiting around the nucleus have what kind of a charge
pentagon [3]

The electrons orbiting around the nucleus in an atom have a negative electric charge.  Together, all of the electrons of an atom create a negative charge that balances the positive electric charge of the protons in the nucleus. Electrons are extremely small.

8 0
3 years ago
An atom of 132sn has a mass of 131. 917760 amu. mass of1h atom = 1. 007825 amu mass of a neutron = 1. 008665 amu. calculate the
Lelechka [254]

The mass defect in amu/atom is 11.928.

The mass defect is the discrepancy between the nucleus of an atom's anticipated mass and its actual mass. This discrepancy is due to the binding energy of a system, which might manifest as excess mass.

The nucleus must be robustly spherical as expected for a doubly magical nucleus because the stripped neutron fell into a distinct orbital shell above the closed inner shells of tin-132 after the researchers examined the energy and angular distribution of the particles.

Mass of atom = 131.917760 amu

Mass of proton = 1.007825 amu

Mass of neutron = 1.008665 amu

Sn atom has 50 protons and 69 neutrons.

Mass defect = Mp + Mn - MA

                    = 50 × 1.007825 + 69 × 1.008665 - 131.917760

                    = 50.39125 + 69.597885 - 131.917760

                    = 11.928 amu/atom

Therefore, the mass defect in amu/atom is 11.928.

Learn more about mass defects here:

brainly.com/question/11410788

#SPJ4

6 0
2 years ago
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