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VladimirAG [237]
3 years ago
11

Explain how the different layers of the mantle have a different state of matter. (Why is

Chemistry
1 answer:
Eva8 [605]3 years ago
3 0

Answer:

the crust is solid because the particles are tightly packed and moves very little. the mantle is a liquid because the particles are more spread apart and have more movement.

Explanation:

i already explained it :)

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How does the number of the families relate to the charges of ions that they form?
yanalaym [24]

Explanation:

The total number of electrons in the outermost shell orbitals gives the valency or the combining power of the element concerned.

The number is the same as the number of electrons gained or lost or shared in interatomic bonding.

The number of electrons lost denotes the charges on ions that they form.

On the periodic table, a group or family have the same number of electrons in their outermost shell. The group number denotes the amounts of electrons in their outer shell.

Here is a possible list of valencies of elements from valence electrons;

 Number of valence electrons      Possible valencies

                1                                                  1

                2                                                 2

                3                                               3, 1

                4                                              4, 2

                5                                               5, 3

                6                                               6, 2

                7                                                7 , 1

                8                                                8,0

These valencies are the charges on the ions. The bold ones are the preferred ones.

Group 8 elements do not carry any charges .

learn more:

Valence shell of carbon brainly.com/question/5274289

#learnwithBrainly

8 0
4 years ago
Explain the difference between weight and mass.
Flura [38]
There is a basic difference, because mass is the actual amount of material contained in a body and is measured in kg, gm, etc. Whereas weight is the force exerted by the gravity on that object mg. Note that mass is independent of everything but weight is different on the earth, moon, etc.
8 0
4 years ago
What are the names of the following three compounds (see attached)
balu736 [363]

Answer:

1. 4-ethyl-1-heptene

2. 6-ethyl-2-octene

3. 1-butyne

Explanation:

The compounds are named according to IUPAC rules.

Compound 1:

  • Identify the longest carbon chain. This chain is called the parent chain.
  • Identify all of the substituents (groups appending from the parent chain).
  • The parent chain is numbered so that the multiple bonds have the lowest numbers (double has the priority over alkyl substituents).
  • The longest chain contains 7 carbon atoms, so taken the name hept.
  • The double bond between C1 and C2, so take no. 1 and add the suffix ene to hept "1-heptene".
  • The ethyl group is the alkyl substituent on position 4.
  • So the name is 4-ethyl-1-heptene.

Compound 2:

  • Identify the longest carbon chain. This chain is called the parent chain.
  • Identify all of the substituents (groups appending from the parent chain).
  • The parent chain is numbered so that the multiple bonds have the lowest numbers (double has the priority over alkyl substituents).
  • The longest chain contains 8 carbon atoms, so taken the name oct.
  • The double bond between C2 and C3, so take no. 2 and add the suffix ene to oct "2-octene".
  • The ethyl group is the alkyl substituent on position 6.
  • So the name is 6-ethyl-2-octene.

Compound 3:

  • Identify the longest carbon chain. This chain is called the parent chain.
  • Identify all of the substituents (groups appending from the parent chain), there is no substituents.
  • The parent chain is numbered so that the multiple bonds have the lowest numbers (Triple bond here take the lowest number).
  • The longest chain contains 4 carbon atoms, so taken the name but.
  • The triple bond between C1 and C2, so take no. 1 and add the suffix yne to but "1-butyne".
  • So the name is 1-butyne.

7 0
3 years ago
How many electrons are there in an atom of carbon?​
Mashutka [201]

Answer:

if its a neutral atom there should be 6 electrons because there are 6 protons

Explanation:

8 0
3 years ago
The recommended dose of aspirin will yield approximately 100.0 micrograms/mL in the blood. How many molecules of aspirin (C9H8O4
BigorU [14]

Answer:

3.34x10¹⁶ molecules of aspirin are in a drop of blood

Explanation:

The recomended dose of aspirin in blood is 100.0μg/mL =

1x10⁻⁴g aspirin / mL of blood.

In a drop (0.100mL) there are:

0.100mL ₓ (1x10⁻⁴g aspirin / mL of blood) = 1x10⁻⁵g aspirin.

Molecular mass of aspirin is:

9C = 12.01g/mol ₓ 9 = 108.09g/mol

8H = 1.01g/mol ₓ 8 = 8.08g/mol

4O = 16g/mol ₓ 4 = 64g/mol

108.09 + 8.08 + 64 = 180.17g/mol

Thus, moles of aspirin in 1x10⁻⁵g are:

1x10⁻⁵g ₓ (1mol / 180.17g) = 5.55x10⁻⁸ moles of aspirin

In 1 mole, you have 6.022x10²³ molecules, thus:

5.55x10⁻⁸ moles of aspirin ₓ (6.022x10²³ molecules / 1 mole ) =

<h3>3.34x10¹⁶ molecules of aspirin are in a drop of blood</h3>
7 0
3 years ago
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