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swat32
3 years ago
5

Elements with the valence-shell electron configuration ns2np5

Chemistry
1 answer:
mihalych1998 [28]3 years ago
4 0

Answer:

The answer to your question is:  Fluorine, Chlorine, Bromine, Iodine

Explanation:

Electron configuration              ns² np⁵

We observe that this electron configuration finishes in "p". Elements from groups IIIA to VIIIA finish their electron configuration in "p".

Elements in Group IIIA    finish in p¹

                    Group IVA    finish in p²

                    Group VA    finish in p³

                    Group VIA   finish in p⁴

                   Group VIIA  finish in p⁵

                    Group VIIIA finish in p⁶

Then, the list of elements with this electron configuration is:

Fluorine, Chlorine, Bromine, Iodine

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Let’s say that you have a solvatochromic compound that appears red in a solvent. You dissolve the compound in another solvent an
EastWind [94]

Answer:

Hypsochromic compound, More polar solvent

Explanation:

Hypsochromic shift refers to the shift of solution colour to blue side of the visible spectrum (blueshift) with increasing polarity of the solvent. In our case, the solution changes to orange colour from red when solvent is changed. This means that the emission spectrum of the solution underwent blueshift. (As orange colour is on the 'blue' side for red colour.) So this is a hypsochromic shift, and the new solvent is more polar that the previous one, as it caused hypsochromic shift.

7 0
2 years ago
What involves 2 non metals ionic or covalent bonds
Juli2301 [7.4K]

Answer:

A bond forms between two non metals is covalent

Explanation:

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2 years ago
Friction is a force that opposes motion. When friction is present, heat is generated.
anyanavicka [17]

Answer:

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Explanation:

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8 0
2 years ago
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This nonmetal is in the same group as lead.<br><br> What is the element
Andreyy89
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5 0
3 years ago
If a 275 mL gas container had pressure of 732.6 mm Hg at -28°C and the gas was condensed into a liquid with a mass of 1.95 g, wh
ipn [44]

Answer:

THE MOLAR MASS OF THE GAS IS 147.78 G/MOLE

Explanation:

Using PV = nRT

n = Mass / molar mass

P = 732.6 mmHg = 1 atm = 760 mmHg

So therefore 732.6 mmHg will be equal to 732.6 / 760 = 0.964 atm

P = 0.964 atm

V = 275 mL = 275 *10 ^-3 L

R = 0.082 Latm/ mol K

T = -28 C = 273 - 28 K = 245 K

mass =  1.95 g

molar mass = unknown

Having known the other variables in the formula, the molar mass of the gas can be obtained.

PV = m R T/ molar mass

Molar mass = m RT / PV

Molar mass = 1.95 * 0.082 * 245 / 0.964 * 275 *10^-3

Molar mass = 39.1755 / 265.1 *10^-3

Molar mass = 39.1755 / 0.2651

Molar mass = 147.78 g/mol

The molar mass of the gas is 147.78 g/mol

5 0
3 years ago
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