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scoundrel [369]
3 years ago
12

What does the term "compound" mean? two or more substances dispersed in one another but each retaining their own identity. two o

r more elements joined together such that the elements have lost their individual identity in favor of a new set of properties. a change in shape, size, or physical characteristics but remaining the same substance.
Chemistry
2 answers:
GarryVolchara [31]3 years ago
4 0
I believe it's the second option. 2 or more elements joined together such that the elements have lost their individual identity in favour of a new set of properties.
Ksju [112]3 years ago
3 0

Answer: Option (b) is the correct answer.

Explanation:

When two or more different atoms are bonded together either by sharing or donating electrons then it results in the formation of a new product which exhibit different properties as compared to its parent atoms. This new product is known as compound.

For example, 2Na^{+} + CO^{2-}_{3} \rightarrow Na_{2}CO_{3}

Therefore, Na_{2}CO_{3} will have different properties as compared to sodium and carbonate ions.

Thus, we can conclude that the term "compound" mean two or more elements joined together such that the elements have lost their individual identity in favor of a new set of properties.

You might be interested in
in a given homologous series of hydrocarbons, the boiling point generally increases as the size of the molecules increases. the
vitfil [10]

The boiling point of hydrocarbons generally increases as the size of the molecules increases because more bonds are needs to be broken in larger organic molecules.

<h3>What are hydrocarbons?</h3>

Hydrocarbons are organic compounds which here composed of hydrogen and carbon alone.

Hydrocarbons are grouped into families or homologous series based on a reactive group known as the gincyiial group

The homologous series include

  • alkanes
  • alkenes
  • alkynes

The boiling point generally increases as the size of the molecules increases because more bonds are needs to be broken in larger organic molecules.

Learn more about hydrocarbons at: brainly.com/question/3551546

#SPJ1

5 0
2 years ago
According to the combined gas law, the pressure exerted by a gas is:
sergij07 [2.7K]

Answer : The correct option is, (d) inversely proportional to volume and directly proportional to the kelvin temperature

Explanation :

Boyle's Law : It is defined as the pressure of the gas is inversely proportional to the volume of the gas at constant temperature and number of moles.

P\propto \frac{1}{V}

Charles' Law : It is defined as the volume of the gas is directly proportional to the temperature of the gas at constant pressure and number of moles.

V\propto T

Gay-Lussac's Law : It is defined as the pressure of the gas is directly proportional to the temperature of the gas at constant volume and number of moles.

P\propto T

Combined gas law : It is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

\frac{PV}{T}=K

or,

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

From the above information we conclude that the pressure exerted by a gas is inversely proportional to volume and directly proportional to the kelvin temperature.

Hence, the correct option is, (d)

3 0
3 years ago
What phase change does dry ice go through to change from a gas to a solid
muminat

deposition- gas to solid

sublimation- solid to gas

7 0
3 years ago
Read 2 more answers
What additional volume of 10.0 m hcl would be needed to exhaust the remaining capacity of the buffer after the reaction describe
Julli [10]

A buffer of pH = 7.79 is prepared using Tris HCl and NaOH. Moles of Tris HCl = 31.52 g x (1 mole / 157.59 g) = 0.20 moles.

Moles of NaOH = Molarity x volume = 10.0 M x 6.7 mL / 10^3 L = 0.067 moles

Tris – HCl + OH^- -> Tris + H_2O + Cl^-

Setup the reaction table as follows :

Tris – HCl + OH^- -> Tris + H_2O + Cl^-

<span>0.200           0.067                                            Initial</span>

<span>-0.067          -0.067    +0.067                            Change</span>

<span>0.1333         0              0.067                            Final</span>

 

The buffer is diluted to ! L and half the solution is taken. So half the moles of tris – HCl and tris are present.

Moles of Tris – HCl = 0.133 / 2 = 0.0665 moles

Moles of tris = 0/067 / 2 0.0335 moles

 

To this solution, 0.0150 mol of H+ are added. H+ reacts with tris giving Tris – HCl. So moles of tris – HCl = 0.0665 + 0.0150 = 0.0815 moles

Moles of tris = 0.0335 – 0.015 = 0.018 moles

 

When all the 0.018 moles of Tris are consumed, the remaining capacity of the buffer is exhausted.

So moles of HCl to be added = 0.018 moles.

<span>Volume of Hcl = moles /molarity = 0.018 moles / 10.0 M = 0.0018 L = 1.8 mL</span>

6 0
3 years ago
An atom is the ________________.
nikitadnepr [17]

Answer:

b i think but maybe c

Explanation:

7 0
3 years ago
Read 2 more answers
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