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djverab [1.8K]
3 years ago
5

Which chemical equation is balanced?

Chemistry
2 answers:
Lilit [14]3 years ago
7 0
I think the answer is <span>PCl5 + 4H2O → 5HCl + H3PO4
</span>
olasank [31]3 years ago
4 0

Answer: Option (d) is the correct answer.

Explanation:

An equation will be said balanced equation when there are equal number of atoms on both reactant and product side.

For example, PCl_{5} + 4H_{2}O \rightarrow 5HCl + H_{3}PO_{4}

Number of atoms on reactant sides are as follows.

P = 1

Cl = 5

H = 8

O = 4

Number of atoms on product side are as follows.

P = 1

Cl = 5

H = 8

O = 4

Thus, there are equal number of atoms on both reactant and product side. Hence, this equation is balanced.

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Based on the octet rule, nitrogen most likely forms a __ion.
Greeley [361]

Answer:

b) N3-

Explanation:

The octet rule stipulates that a chemical specie is stable if it has eight electrons in its outermost shell.

Nitrogen belongs to group 15. This means that it has five electrons in its outermost shell. The formation  N3- means that it accepted three electrons.

This brings the total number of outermost electrons to eight in accordance with the octet rule.

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3 years ago
An ideal monatomic gas at 300 K expands adiabatically to twice its initial volume. Assume that the process is also quasistatic.
kondor19780726 [428]

Answer:

600k

Explanation:

In this problem, we need to use a gas law that relates temperature to volume. The gas law to use here is the Charles’ law.

The Charles’ law posits that temperature and volume are directly proportional, provided that the pressure is kept constant.

Mathematically:

V1/T1 = V2/T2

We are looking at getting V2, hence we can write the mathematical equation as:

T2 = V2T1/V1

Asides the fact that we know that the gas is monoatomic, we do not know its volume. Let its initial volume be v. Since it expanded adiabatically, this means that its new volume is 2v

Hence: V1 = v , V2 = 2v , T1 = 300k and T2 is ?

Substituting these values, we have the following:

T2 = (2v * 300)/v

T2 = 600k

6 0
4 years ago
What is the volume of 12.0 moles of Cl2 gas at STP?
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The answer has to be 22.4L
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Which bond is formed when a fatty acid is attached to a glycerol<br> molecule?<br> 2 of 8 QU
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Answer: Heyo Kenji Here! Here's your answer- In a fat molecule, the fatty acids are attached to each of the three carbons of the glycerol molecule with an ester bond through the oxygen atom. During the ester bond formation, three molecules are released. Since fats consist of three fatty acids and a glycerol, they are also called triacylglycerols or triglycerides.

Explanation: Hope this helps!

Have a nice day!

- Kenji ^^

4 0
2 years ago
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