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balu736 [363]
3 years ago
14

Substance X is a compound containing 632mg of manganese and 368mg of oxygen. Substance X is shown

Chemistry
1 answer:
defon3 years ago
8 0

The empirical formula : MnO₂.

<h3>Further explanation</h3>

Given

632mg of manganese(Mn) = 0.632 g

368mg of oxygen(O) = 0.368 g

M Mn = 55

M O = 16

Required

The empirical formula

Solution

You didn't include the pictures, but the steps for finding the empirical formula are generally the same

  • Find mol(mass : atomic mass)

Mn : 0.632 : 55 = 0.0115

O : 0.368 : 16 =0.023

  • Divide by the smallest mol(Mn=0.0115)

Mn : O =

\tt \dfrac{0.0115}{0.0115}\div \dfrac{0.023}{0.0115}=1\div 2

The empirical formula : MnO₂

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Justify the statement, "nuclear energy is harmful as well as useful."​
Olenka [21]

Nuclear energy is harmful because it releases of harmful ionizing radiation and has been employed in the production of atomic bombs and hydrogen bombs.

Nuclear energy is beneficial in that it produces vast amount of energy for domestic and industrial purposes.

<h3>What is nuclear energy?</h3>

Nuclear energy refers to the energy which is produced as a result of the changes that occur in the nucleus of atoms of elements.

Nuclear energy produces the largest amount of energy when compared to other forms of energy sources.

Nuclear energy is produced by two types of nuclear reactions:

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Nuclear energy is harmful in that it results in the release of harmful ionizing radiation which damages cells and tissues of living organisms.

Nuclear energy is also harmful because nuclear energy has been employed in the production of atomic bombs and hydrogen bombs.

On the other hand, nuclear energy is beneficial in that it produces vast amount of energy which can be used for domestic and industrial purposes. It also produces fewer wastes that damage the environment compared to fossil fuels.

In conclusion, nuclear energy is both beneficial and harmful.

Learn more about nuclear energy at: brainly.com/question/15214614

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8 0
2 years ago
Is
BlackZzzverrR [31]

Answer:

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7 0
3 years ago
What is the term for the process that occurs when an atom of an element spontaneously breaks apart to create an atom of a differ
quester [9]
Atoms of elements below atomic number 20 do not split because of stable nucleus.
Stability of nucleus is determined by neutron/proton ratio.
For light stable nuclides, number of protons ans neutrons are same. For heavy nuclides, number of neutrons is more than the number of protons.

Here the type of decay is alpha decay because number of nucleons(protons and neutrons) changes.
Hence option d is correct.
8 0
3 years ago
I need this one done please
ioda

Answer:

I cant see it im so sorry

Explanation:

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7 0
3 years ago
Ammonia and gaseous hydrogen chloride combine to form ammonium chloride. NH3+HCL-&gt;NH4CL
Hatshy [7]
The balanced chemical equation would be as follows:

<span>NH3+HCL->NH4CL

For this, we assume these gases are ideal gases so we can use the equation PV=nRT. We first calculate the number of moles of each reactants. We do as follows:

</span>PV=nRT
1.02 (4.21) = n (0.08206)(27+273.15)
n = 0.17 mol NH3 -------><span>consumed completely and therefore the limiting reactant</span>

PV=nRT
0.998 (5.35 L) = n (0.08206)(26+273.15) 
n = 0.22 mol HCl

<span>what mass of NH4Cl(s) will be produced?
0.17 mol NH3 (1 mol NH4Cl / 1 mol NH3 ) = 0.17 mol NH3

which gas is the limiting reactant?
 NH3 gas

which gas is present in excess?
HCl gas</span>
4 0
3 years ago
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