2 years ago

A covalent bond in which electrons are shared unequally is

1 answer:

7 0

Covalent bonds = sharing of electrons between two atoms of the same elements or elements close to each other on the periodic table. Usually they are metals sometimes non-metals. In polar bonds electrons are shared unequally. Non polar bonds share electrons equally.

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Of the following which element is the heaviest? helium argon lithium aluminum

Georgia [21]

Answer:

Lithium

Explanation:

it is the only metal listed.

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3 years ago

In the short a rainstorm might damage buildings and habitats by a river to flood. What positive effect might a rainstorm have in

ra1l [238]

Answer:

The rainstorm can dehydrate the plants

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3 years ago

How many electrons in an atom could have these sets of quantum numbers n=7 l=3 ml=-1?

zysi [14]

Solution:

Since we have ml=-1

it shows that it has two 2e- i;e it fond in 2nd subshell in f orbital. And each subshell can hold 2 e-.

Thus the required answer is 2 electrons hold by an atom.

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3 years ago

Write a balenced chemical equation for the reaction: include abbreviation for the physical states-

Nuetrik [128]

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2 years ago

120 grams of calcium nitrite Ca(NO2)2 is dissolved in a 240 mL solution. What is the molarity of the solution???

expeople1 [14]

Hey there!:

Molar mass Ca(NO2)2 = 132.089 g/mol

Mass of solute = 120 g

Number of moles:

n = mass of solute / molar mass

n = 120 / 132.089

n = 0.0009084 moles of Ca(NO2)2

Volume in liters of solution :

240 mL / 1000 => 0.24 L

Therefore:

Molarity = number of moles / volume of solution

Molarity = 0.0009084 / 0.24

Molarity = 0.003785 M

Hope that helps!

5 0

3 years ago