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Natali5045456 [20]
3 years ago
6

Why would you expect sodium (Na) to react strongly with chlorine (Cl)?

Physics
2 answers:
Snowcat [4.5K]3 years ago
5 0
3. is the answer, <span>Sodium needs to lose one electron, and chlorine needs to gain one electron. This is because Sodium's row always wants to give away an electron, while Chlorine's row wants to gain an electron.</span>
ASHA 777 [7]3 years ago
5 0

Answer: The correct option is (3) " Sodium needs to lose one electron, and chlorine needs to gain one electron ".

Explanation :

The electronic configuration of sodium (Na) is 1s^2\ 2s^2\ 2p^6\ 3s^1. It has only one vacant electron.

While the electronic configuration of chlorine is 1s^2\ 2s^2\ 2p^6\ 3s^2\ 3p^5. It has seven valance electrons.

When Na reacts with Cl, Na will lose one electron and this lost electron gets transferred to chlorine. This forms a strong ionic bond.

So, the correct option is (3) " Sodium needs to lose one electron, and chlorine needs to gain one electron ".

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Answer:

you are making an observation that uses numbers.

Explanation:

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3 years ago
A ray is incident on a film of thickness t and the index of refraction n=1.6 at an angle θ = 35 degrees. Find the angle of refra
lidiya [134]

Answer

Given,

refractive index of film, n = 1.6

refractive index of air, n' = 1

angle of incidence, i = 35°

angle of refraction, r = ?

Using Snell's law

n' sin i = n sin r

1 x sin 35° = 1.6 x sin  r

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Angle of refraction is equal to 21°.

Now,

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α be the angle with horizontal surface and incident ray.

α = 90°-21° = 69°

t be the thickness of the film.

So,

tan \alpha = \dfrac{t}{d/2}

tan 61^0 = \dfrac{t}{2.5/2}

t = 2.26 mm

Hence, the thickness of the film is equal to 2.26 mm.

4 0
3 years ago
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n200080 [17]
Rocket fuel will and smoke will emit from the thrusters.
4 0
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steposvetlana [31]

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9.3 g/cm³

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First, convert kg to g:

0.485 kg × (1000 g / kg) = 485 g

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8 0
3 years ago
A wave has a wavelength of 9 mm and a frequency of 6 hertz. What is its speed?
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Speed = (frequency)x(wavelength).

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