Answer:
When two or more substances, that do not react chemically, are blended together,
the result is a mixture in which each component retains its individual identity and
properties.
The separation of the components of a mixture is a problem frequently encountered
in chemistry. The basis of the separation is the fact that each component has a
different set of physical and chemical properties. The components are pure substances
which are either elements or compounds. Under the same conditions of pressure and
temperature, the properties of every sample of a pure substance are identical. Each
sample melts at the same temperature, boils at the same temperature, has the same
solubility in a given solvent, etc.
Energy of electron decrease when it move toward neuclus and increase when move away as 2p orbital is away from 2s so energy of electron is less in 2s as compare to 2p
Answer:
Be,Mg,Ca,Sr,Ba.Ra[down the group electronegativity is decreasing]
Explanation:
<u>Answer:</u> The boiling point elevation of salt water solution is 0.55°C
<u>Explanation:</u>
To calculate the mass of water, we use the equation:
Density of water = 1 g/mL
Volume of water = 122 mL
Putting values in above equation, we get:
To calculate the elevation in boiling point, we use the equation:
Or,
where,
= ?
i = Vant hoff factor = 2 (For NaCl)
= molal boiling point elevation constant = 0.52°C/m.g
= Given mass of solute (NaCl) = 3.80 g
= Molar mass of solute (NaCl) = 58.55 g/mol
= Mass of solvent (water) = 122 g
Putting values in above equation, we get:
Hence, the boiling point elevation of salt water solution is 0.55°C
Answer:
<h2>If we mix equal amounts of an acid and a base then two chemicals essentially cancel out each other and produce </h2><h2>salt and water. Mixing equal amounts of a strong acid with strong base results in a neutral solution whose pH value remains 7 and this type of reactions are known as neutralization reactions.</h2>
Explanation:
<h2>
<em><u>PLEASE</u></em><em><u> MARK</u></em><em><u> </u></em><em><u>ME</u></em><em><u> BRAINLIEST</u></em><em><u> AND</u></em><em><u> FOLLOW</u></em><em><u> ME</u></em><em><u> LOTS</u></em><em><u> OF</u></em><em><u> LOVE</u></em><em><u> FROM</u></em><em><u> MY</u></em><em><u> HEART</u></em><em><u> AND</u></em><em><u> SOUL</u></em><em><u> DARLING</u></em><em><u> TEJASWINI</u></em><em><u> SINHA</u></em><em><u> HERE</u></em><em><u> ❤️</u></em></h2>