3 years ago

Pleaseeee helpppppppp

Chemistry

1 answer:

Minchanka [31]3 years ago

7 0

Answer:

C. The third option

Explanation:

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The latent heat is correlated with energy as follows:

Q = mL

550 * 103 = 14 * 103 * L

L = 39.285 J /g

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What is the frequency of radiation whose wavelength is 2.51 x 10 -7m?

hodyreva [135]

The frequency of radiation : 1.2 x 10¹⁵ Hz

<h3>Further explanation </h3>

Radiation energy is absorbed by photons

The energy in one photon can be formulated as

$\large{\boxed{\bold{E\:=\:h\:.\:f}}}$

Where

h = Planck's constant (6,626.10⁻³⁴ Js)

f = Frequency of electromagnetic waves

c = speed of light

= 3.10⁸ m/s

λ = wavelength

Wavelength-λ is 2.51 x 10⁻⁷m

The frequency :

$\tt f=\dfrac{3.10^8}{2.51\times 10^{-7}}=1.2\times 10^{15}$

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If an atom, like a metal atom, has fewer valence electrons,

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ionic bonding or covalent

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Shale forms from tiny particles of which material?

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Answer:

a. mica

Explanation:

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