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2 years ago

What do anions like F do to fulfill the octet rule?

Chemistry

2 answers:

musickatia [10]2 years ago

4 0

Answer:

Because it gains one electron to meet the octet rule, fluorine possesses seven valence electrons and normally forms the F – ion.

Explanation:

katrin2010 [14]2 years ago

3 0

Answer:

Fluorine has seven valence electrons and usually forms the F – ion because it gains one electron to satisfy the octet rule.

Explanation:

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Most substances can exist as a solid, liquid, or gas depending on ? ( science

earnstyle [38]

Answer:

The amount of energy in molecules of matter determines the state of matter.

Explanation:

The amount of energy in molecules of matter determines the state of matter. Matter can exist in one of several different states, including gas, liquid, or solid-state.

3 0

3 years ago

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Artemon [7]

Answer:

$9.8ms^{-2}$

Explanation:

using the equation :

$acceleration = \frac{final velocity - initial velocity}{timetaken} \\ a =\frac{v-u}{t}$

where v is 98m/s

u is 0m/s

t is 10seconds

$a=\frac{98m/s- 0m/s}{10} \\a=\frac{98}{10}\\ a=9.8m/s^{2}$

3 0

3 years ago

Calculate the concentration of CO2 in water at 25 degrees Celsius when the pressure of CO2 over the solution is 4.5 atm. At 25 d

OLEGan [10]

Answer : The concentration of $CO_2$ is, 0.12 M

Explanation :

Using Henry's law :

$C_{CO_2}=k_H\times p_{CO_2}$

where,

$C_{CO_2}$ = concentration of $CO_2$ = ?

$p_{CO_2}$ = partial pressure of $CO_2$ = 4.5 atm

$k_H$ = Henry's law constant = $3.1\times 10^{-2}mol/L.atm$

Now put all the given values in the above formula, we get:

$C_{CO_2}=3.1\times 10^{-2}mol/L.atm\times (4.5atm)$

$C_{CO_2}=0.1395M\approx 0.12M$

Thus, the concentration of $CO_2$ is, 0.12 M

5 0

3 years ago

Consider the temperature versus time graph below. I which region is the substance in both the solid phase and the liquid phase?

SVEN [57.7K]

Answer:

Explanation:

The change of state occurs at a constant temperture and pressure. In the grahp we can see while the time passes, the temperature doesn't change.

The rect number 4 correspond to a liquid-gas phase

8 0

3 years ago

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If the frequency of a wave is 68 hertz then the period of the wave is going to be

tigry1 [53]

The answer is 4.41x10^1 m.

Explanation:

You would use this formula to calculate it
λ = C/f

Where,

λ (Lambda) = Wavelength in meters

c = Speed of Light (299,792,458 m/s)

f = Frequency

So we have the frequency, 68 Hz, and we have the speed of light. Now we put it into the equation and it will look like this:

λ= (299,792,458 m/s) / (68 Hz)

λ= 4.41x10^1

6 0

3 years ago

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