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3 years ago

In lewis structures, a solid line is used to represent...

Chemistry

1 answer:

sashaice [31]3 years ago

5 0

Answer:

in lewis structure, a solid line is usually used to represent a bond between the atoms

Explanation:

the dots that are shown around the atom represent the valence electrons on the outer shell

when there are multiple atoms, either a pair of dots circled (one dot from each atom) or a solid line is used to show the bonds between those atoms

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What volume of 1.75 M hydrochloric acid (HCl aq) must be diluted with water to prepare 0.500 L of 0.250 M hydrochloric acid?

Airida [17]

Answer:

$V_1=0.0714L$

Explanation:

Hello there!

In this case, since we need to dilute the 1.75-M HCl, and the total number of moles remain unchanged, we can write:

$n_1=n_2$

And in terms of volume and concentration:

$C_1V_1=C_2V_2$

Thus, we can solve for the volume of the concentrated HCl as shown below:

$V_1=\frac{C_2V_2}{C_1}$

Therefore, we plug in the data to get:

$V_1=\frac{0.250M*0.500L}{1.75 M}\\\\V_1=0.0714L$

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3 years ago

An atom of alluminum has an atomic number of 13 and a mass of a mass number lf 27. How many neutrons does it have?

Alex777 [14]

Answer:

13 Neutrons

Explanation:

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3 years ago

Read 2 more answers

Which describes the correct number and types of atoms in this molecular structure?

Andrews [41]

Answer: Option (1) is the correct answer.

Explanation:

The molecular structure is as follows.

$CH_{3}-CO-CH_{2}-CO-CH_{3}$

This compound contains carbon (C) atoms, hydrogen (H) atoms, oxygen (O) atoms.

Or, the chemical formula of this compound is $C_{5}H_{8}O_{2}$ .

Thus, we can conclude that there are five carbon atoms, eight hydrogen atoms and two oxygen atoms.

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3 years ago

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Butane - ethane - methane - propane: What do these hydrocarbons have in common? A) The same number of carbons present. B) They a

Paraphin [41]

Answer:

C) They all have single covalent bonds.

Explanation:

The given hydrocarbons Butane,Ethane,Methane,Propane belongs to alkane group.

In alkane group consists of hydrogen and carbon in which carbon_carbon bonds are single and carbon_hydrogen bond is also single.

The elements of this group makes bond by sharing of electrons that means they form single covalent bond.

Butane have 4 , Ethane has 2, Methane has 1, and Propane has 3 carbon atoms.

Since they have different number of carbon atoms so their structural formula also differs.

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4 years ago

Can you tell me answe of all (5,6,7,8)

GREYUIT [131]

Answer:

i dont know thank you soo much

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1 year ago