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Gekata [30.6K]
3 years ago
5

Mg + 2HCl → MgCl2 + H2 1. Is the equation above balanced? How do you know?

Chemistry
2 answers:
slega [8]3 years ago
4 0
<h2>Yes it is balanced as number of atoms of each element has to be same on reactant and product side</h2>

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

Mg+2HCl\rightarrow MgCl_2+H_2

Thus in the reactants, there are 2 atoms of hydrogen , 2 atoms of chlorine and 1 atom of magnesium.

Thus there will be 2 atoms of hydrogen , 2 atoms of chlorine and 1 atom of magnesium in the product as well.

Thus the above equation is balanced

Learn more about law of conservation of mass

brainly.com/question/12335419

brainly.com/question/11954533

Tanzania [10]3 years ago
4 0

Answer:

Yes

Explanation:

If MG = 2HCl is blanced, that means MgCl2 = H2 is balanced.

So then its yes.

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Answer:

1)0.2

2)0.72

3)0.01

Explanation:

Formula is 1)454÷2270

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8 0
2 years ago
What does a gamma ray primarily consist of?
damaskus [11]
Answer is D

Explanation: A gamma ray primarily consists of pure energy and no mass.
6 0
3 years ago
What is the structural formula of 2-methylbutan-2-ol (sometimes called 2-methyl-2-butanol)?
grigory [225]
<span>The structural formula of 2-methylbutan-2-ol is in Word document below.
</span>2-methyl-2-butanol is organic compound and belongs to alcohols. Hydroxyl <span>functional group is on second saturated carbon atom of butane and also methyl group (-CH</span>₃) is on second saturated carbon atom of main chain (butane).<span>

</span>
Download docx
4 0
3 years ago
Read 2 more answers
Which of the following could happen when infrared radiation is absorbed by a molecule ?
Leto [7]

Answer:

       E) Intramolecular bond angles change

Explanation:

Infrared Radiation:

IR is electromagnetic radiations. The wavelength i.e. 700nm to 1000 mm of infrared is longer than invisible light and Its frequency is lower than light, that's why it is invisible to light.

  • When IR radiation strike the molecule it absorbed by this molecule.
  • This radiation used to identify and study chemicals.
  • Infrared radiation interact with intra-bonds of the molecule.
  • Bonds in the molecules have vibrational translational and rotational movements
  • Due to these vibration, rotation and translation movement it absorb a radiation of specific frequency and wavelength
  • These movements of bond are very small and absorbs radiations of very low frequency
  • So when Infrared light or radiation absorbed the intra-bonds of the molecule get affected and angles of these bonds changes.
  • As the frequency of the absorbed radiation matches the frequency of the bond that vibrates.

So

The correct option is option E

       E) Intramolecular bond angles change

* Note:

it couldn't be option A as the frequency of IR is not enough to rotate a whole molecule

It Couldn't be option B as IR rations are electromagnetic radiation of longer wave length so it one can not see it with light so how it will glow a molecule

It also not could be the option C as for the excitation of electrons require much higher energy.

It also not the option D as nuclear magnetic spin is associated with nuclear magnetic radiation that are much different from IR.

4 0
3 years ago
Determine which law is appropriate for solving the following problem. Carbon dioxide is in a steel tank at 20°C, 10 liters and 1
patriot [66]

<u>Answer:</u>

Law used: Combined Gas Law

<u>Explanation:</u>

We are given the following problem:

Carbon dioxide is in a steel tank at 20°C, 10 liters and 1 atm. What is the pressure on the gas when the tank is heated to 100°C?

To solve this, the most appropriate law that can be used it Combined Gas Law, which is the result of combining the Boyle's law, Charles' law, and Gay-Lussac's law together.

5 0
3 years ago
Read 2 more answers
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