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3 years ago

Can someone help me with this! I need it ASAP! I don’t understand

Chemistry

1 answer:

Archy [21]3 years ago

3 0

Answer:

The answer to your question is:

Explanation:

1) Increasing atomic radius:

Oxygen 74

Aluminum 143

Potasium 227

2) Increasing electronegativity

Neon -

Aluminum 1.61

Sulfur 2.58

Oxygen 3.44

3.-

Electronegativity: is the measure of the tendency of an atom to attract a pair of electrons.

Ionization energy: is the quantity of energy that an isolated, gaseous atom must absorb to discharged an electron, resulting in a cation.

4.-

Atomic radius increases as we move down on the periodic table.

Atomic radius is the distance from the center of a nucleus to the outer most shell containing electrons.

5.-

Sulfur = 1s² 2s² 2p⁶ 3s² 3p⁴

Neon = 1s² 2s² 2p⁶

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3 years ago

Which element is best known for it's bad smell?

tia_tia [17]

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3 years ago

Please help

Mazyrski [523]

Answer:

Diagram Z

Explanation:

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2 years ago

If a 1.45 M solution has 2.43 g HCl dissolved, what is the volume of solution? (Change g HCl into mol using molar mass)

Ulleksa [173]

Answer: The volume of solution is 0.0459 L

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution

$Molarity=\frac{n}{V_s}$

where,

n = moles of solute

$V_s$ = volume of solution in L

moles of HCl (solute) = $\frac{\text {given mass}}{\text {Molar mass}}=\frac{2.43g}{36.5g/mol}=0.0666$

Now put all the given values in the formula of molality, we get

$1.45M=\frac{0.0666}{V_s}$

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3 years ago

Pressure of the liquid depends upon the height of the liquid column.

Mandarinka [93]

Answer:

The statement is true.

Explanation:

&he pressure exerted by a liquid depends on the height of the liquid column. Where h is height and ρ is density. As the height increases, pressure will also increase.

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