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1 year ago

List the following compounds in decreasing electronegativity difference. cl2 hcl nacl

1 answer:

8 0

Based on Pauling Scale, electro negativity of Cl = 3.2, Na = 0.9 and H = 2.1

Thus, Electronegativity difference  in $Cl_{2}$ = 3.2 -3.2 = 0
Electronegativity difference  in NaCl = 3.2-0.9 = 2.3
Similarly, Electronegativity difference  in HCl = 3.2 - 2.1 = 1.1

Thus, among the listed molecules following is the decreasing order of electronegativity difference: NaCl> HCl > $Cl_{2}$

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The answer is

<span>The density (D) is quotient of mass (m) and volume (V):
</span> $D= \frac{m}{V}$
The unit is g/cm³

It is given:
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V = 205 mL = 205 cm³
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Thus:
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The density of the goblet is 7.90 g/cm³.

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2 years ago

Which statements are true of the electron cloud model? Check all that apply. It is also known as the planetary model. It is cons

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Answer:

-It is considered the modern atomic model.

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2 years ago

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You wish to extract an organic compound from an aqueous phase into an organic layer (three to six extractions on a marco scale).

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Answer:

Explanation:

It will be better to use solvents that are lighter than water, because their density has an influence on the miscibility . This will give you a better separation during extraction.

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2 years ago

The dissociation of calcium carbonate has an equilibrium constant of Kp = 1.16 at 1073 K . CaCO3(s) ⇄ CaO(s) + CO2(g) If you pla

tino4ka555 [31]

Answer:

<h3> $Pressure of CO_2 in the container=1.6 atm$ </h3>

Explanation:

First balance the chemical equation:

$CaCO_3(s)$ ⇄ $CaO(s) + CO_2(g)$

two components are solid so these two will not exert any kind of pressure in the container so at equilibrium only CO2 will apply pressure on the container

Therefore only partial pressure of CO2 will be taken for the calculation of equilibrium pressure constant i.e. Kp

$K_p=[CO_2]$

$[CO_2]=p$

$K_p=p$

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2 years ago

List the number of each type of atom on the left side of the equation 2C6H14(l)+19O2(g)→12CO2(g)+14H2O(g) Enter your answers sep

murzikaleks [220]

<u>Answer:</u> The number of carbon, hydrogen and oxygen atoms on the left side of the reaction are 12, 28 and 38 respectively

<u>Explanation:</u>

In a chemical equation, the chemical species are termed as reactants or products.

Reactants are defined as the species which react in the reaction and are written on the left side of the reaction arrow.

Products are defined as the species which are produced in the reaction and are written on the right side of the reaction arrow.

For the given chemical equation:

$2C_6H_{14}(l)+19O_2(g)\rightarrow 12CO_2(g)+14H_2O(g)$

On the reactant side:

Number of carbon atoms = (6 × 2) = 12

Number of hydrogen atoms = (14 × 2) = 28

Number of oxygen atoms = (2 × 19) = 38

Hence, the number of carbon, hydrogen and oxygen atoms on the left side of the reaction are 12, 28 and 38 respectively

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2 years ago