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fredd [130]
3 years ago
15

How does the level of intermoleculars bonding between the particles in matter affect the state of matter the particles are takin

g
Chemistry
1 answer:
Lunna [17]3 years ago
3 0

Explanation:

Intermolecular force s between particles in a matter holds particles of molecules together in substances.

  • The stronger the intermolecular forces the more solid a substance is.
  • The weakest intermolecular attraction are found in gases as they have negligible attractive forces in between their particles.
  • Solids are held together by very strong attractive forces.
  • Liquids have weak forces holding them in place and this allows for a little movement.
  • Gases are typically have very weak to negligible attractive forces.
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Charcoal from the dwelling level of the Lascaux Cave in France gives an average count of 0.97 disintegrations of ^14 C per minut
Verdich [7]

Answer:

Explanation:

count given by old sample = .97 disintegrations per minute per gram

count given by fresh sample = 6.68 disintegrations per minute per gram

Half life of radioactive carbon = 5568 years

rate of disintegration

dN / dt = λ N

In other words rate of disintegration is proportional to no of radioactive atoms present . As number reduces rate also reduces .

Let initial no of radioactive be N₀ and after time t , number reduces to N

N₀ / N = 6.68 / .97

Now

N=N_0e^{-\lambda t}

\frac{N}{N_0} =e^{-\lambda t}

\frac{6.68}{.97} = e^{\lambda t}

λ is disintegration constant

λ = .693 / half life

= .693 / 5568

= .00012446 year⁻¹

Putting the values in the equation above

\frac{6.68}{.97} = e^{.00012446\times t}

6.8866 = e^{.00012446\times t}

1.929577 = .00012446 t

t = 15503.6 years .  

4 0
3 years ago
How many additional electrons does this atom of oxygen need in its valence shell to satisfy the octet rule?
vfiekz [6]

Answer:

2

Explanation:

cause it is what it is :> mark me brainlest

5 0
4 years ago
Help me please :3 :3 :3 ;3
11111nata11111 [884]
I am pretty sure the answer is F
7 0
4 years ago
Read 2 more answers
What is the combustibility of calcium?
Alexeev081 [22]

the combustibility of calcium is relitivly high



3 0
4 years ago
Read 2 more answers
In H2SO4, the oxidation number of H is , that of S is , and that of O is .
adell [148]

Answer:

Explanation:

A) In H2SO4, the oxidation number of H is , that of S is , and that of O is .

In H₂SO₄ the oxidation sate of H is +1 (H₂= +2) that of sulfur is +6 and O is -2 (O₄= -8)

In SO₄ the oxidation state is -2, because negative and positive charges are not equal. That's why two hydrogen atoms are attached with one SO₄ to balance the charge.

B) In CaSO4, the oxidation number of Ca is , that of S is . , and that of O is .

In CaSO₄ the oxidation sate of Ca is +2 that of sulfur is +6 and O is -2 (O₄= -8)

In SO₄ the oxidation state is -2, because negative and positive charges are not equal. That's why one calcium atoms is attached with one SO₄ to balance the charge.

C) In HF, the oxidation number of H is , and that of F is .

In HF the oxidation state of hydrogen is +1 and that of fluorine is -1. Both form ionic compound.

4 0
3 years ago
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