The atomic number of the sodium atom is 11. The atomic mass number can be estimated by rounding the atomic mass to 23. From this information, you can find the number of neutrons: 11 protons plus how many neutrons equals a mass number of 23? The number of neutrons would have to be the difference between 23 and 11, which is 12. This fact can be restated this way: 11 protons plus 12 neutrons equals a mass number of 23. For every proton in the nucleus, an electron revolves around the nucleus. Since 11 protons are in sodium, 11 electrons must be in sodium.The atomic number of the chlorine atom is 17. The atomic mass number can be estimated by rounding the atomic mass to 35. From this information, you can find the number of neutrons, protons, and the number of electrons.

1. How many neutrons are in the chlorine atom?
2. How many electrons are in the chlorine atom?
3. How many protons are in the chlorine atom?

Answer:

The correct answer is reduction.

Explanation:

Nitrogen gas reacts with hydrogen gas and get reduced to form ammonia. In this reaction.This is important reaction of atmospheric nitrogen fixation.The reaction is carried out by many nitrogen fixing bacteria such as Azotobacter,Clostridium etc.

        N2+3H2+6e-  =  2NH3

Final answer:

The reaction N2 + 6e → 2N-3 represents reduction, where nitrogen gains electrons to form N-3 ions.

Explanation:

The reaction N2 + 6e → 2N-3 represents reduction. In this reaction, nitrogen (N2) gains electrons (e) to form N-3 ions. Reduction is a process in which an atom or ion gains electrons, resulting in a decrease in its oxidation state.

Learn more about Reduction here:

brainly.com/question/33512011

#SPJ3

Answer:

MgCl₂ = 94 g

Explanation:

Law of conservation of mass:

According to the law of conservation mass, mass can neither be created nor destroyed in a chemical equation.

Explanation:

This law was given by french chemist  Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.

For example:

Chemical equation:

MgCl₂ + Li₂CO₃  → MgCO₃ + 2LiCl

 ?        +    75 g  =    135 g + 34 g

The mass of reactant and product must be equal. That's why,

135+ 34 = 169 on product side

94 + 75 = 169 on reactant side

MgCl₂ + Li₂CO₃    →    MgCO₃ + 2LiCl

  94    +    75 g     =    135 g + 34 g

      169 g             =        169 g

Answer:

The ossicles amplify the sound. They send the sound waves to the inner ear and into the fluid-filled hearing organ (cochlea). Once the sound waves reach the inner ear, they are converted into electrical impulses. The auditory nerve sends these impulses to the brain.

Sound waves enter the outer ear and travel through a narrow passageway called the ear canal, which leads to the eardrum. The bones in the middle ear amplify, or increase, the sound vibrations and send them to the inner ear—also called the cochlea—which is shaped like a snail and is filled with fluid.

Answer:

its (A) trust me I had that same qeu

Explanation:

Answer: C. hydrogen

Explanation:

Atomic radius of an atom is defined as the total distance from the nucleus to the outermost orbital of electron.

On moving from top to bottom, there is an addition of shell around the nucleus and the outermost orbital gets far away from the nucleus and hence, the distance between the nucleus and outermost orbital increases.

This in turn increases the atomic radii of the element from moving top to bottom in a group.

Answer:

Iron can not form iron(i) selenide however it can form iron(ii) selenide.

Explanation:

The possible oxidation states of iron are +2 and +3.

Iron can form iron (ii) selenide.

The formula of iron (ii) selenide is FeSe.

In iron (ii) selenide the oxidation state of iron is +2.

The ratio of both atoms are 1:1.

Its molecular weight is 134.82 g/mol.

It is toxic compound.

Its melting point is 965°C.

Its density is 4.72 g/cm³.

Iron can also form iron (iii) selenide.

The formula of iron (iii) selenide is Fe₂Se₃.

In  iron (iii) selenide the oxidation state of iron is +3.

The ration of both atoms are 2:3.

It also known as ferric selenide.

Its molecular weight is 348.57 g/mol.