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kogti [31]
4 years ago
5

Which symbol represents a salt?

Chemistry
2 answers:
Gennadij [26K]4 years ago
6 0

Answer:

NaCl

Explanation:

Na - Sodium

Cl - Chlorine

These two elements make up salt.

Viktor [21]4 years ago
3 0

Answer:

NaCl

Explanation:

none of them. Salt presents NaCl

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What is the boiling point elevation constant, Kb, of diethyl ether if 38.2 g of the nonelectrolyte benzophenone, C6H5COC6H5, dis
kakasveta [241]

Answer: the boiling point elevation constant is 1.73^0C/m

Explanation:

Elevation in boiling point is given by:

\Delta T_b=i\times K_b\times m

\Delta T_b=T_b-T_b^0= = Elevation in boling point

i= vant hoff factor = 1 (for non electrolyte)

K_b =boiling point constant = ?

m= molality

\Delta T_b=i\times K_b\times \frac{\text{mass of solute}}{\text{molar mass of solute}\times \text{weight of solvent in kg}}

Weight of solvent (diethylether)= 330 g = 0.33 kg

Molar mass of solute (benzophenone)= 182 g/mol

Mass of solute (benzophenone) = 38.2 g

(35.7-34.6)^0C=1\times K_b\times \frac{38.2g}{182g/mol\times 0.33kg}

K_b=1.73^0C/m

Thus the boiling point elevation constant is 1.73^0C/m

3 0
3 years ago
A compound s molecular formula tells you how many atoms of each type are in one molecule. Please select the best answer from the
r-ruslan [8.4K]
A molecular formula tells us the atoms involved in bond, what kind of atoms are involved and the ordinality of the atoms. This tells the number of atoms found in the molecule. This can be used to derive the stoichiometric ratios of different atoms. The answer to this problem is a. True.
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3 years ago
Both compounds A and B have molecular formula C6H14. Monochlorination of compound A results in the formation of two constitution
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Answer:

The name of the two compounds will be:

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B:  3-methylpentane

Explanation:

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Constitutional isomers are the one which have different arrangement of chain.

The possible compounds are shown in the figure with the products of monochlorination of the two isomers.

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<h2>Physical change.</h2>

Explanation:

  • This is a physical change.
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