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VARVARA [1.3K]
3 years ago
6

Which type of unconformity exists between two horizontal rock layers if the older rock is much older than the younger rock?

Chemistry
1 answer:
Nataliya [291]3 years ago
4 0

The type of unconformity exists between two horizontal rock layers if the older rock is much older than the younger rock is : Angular Unconformity.

The sedimentary in this interaction created some sort of angular discordance with the overlying horizontal layers

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The yttrium- nuclide radioactively decays by electron capture. Write a balanced nuclear chemical equation that describes this pr
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Answer:

See explanation and image attached

Explanation:

Yttrium has many isotopes, the lowest mass number of Yttrium  is 89Y.

Recall that electron capture converts an electron into a proton and then into a neutron with a consequent emission of a neutrino (v).

In electron capture, the mass number of the daughter nucleus remains the same as that of the parent nucleus while the atomic number of the daughter nucleus is less than that of the parent by one unit.

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How much heat is absorbed/released when 20.00 g of NH3(g) reacts in the presence of excess O2 (g) to produce NO (g) and H2O (l)
FrozenT [24]

Answer:

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moles = \frac{Mass\ taken}{Molar\ mass}

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Moles= \frac{20.00\ g}{17.031\ g/mol}

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It means that 1 mole of NH_3 undergoes reaction and absorbs 1168\ kJ of heat

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7 0
3 years ago
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Answer:

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Given data:

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wavelength = speed of photon / frequency

Now we will put the values in formula:

wavelength = 3×10⁸ m/s / 5.62 ×10²⁴ Hz

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wavelength = 3×10⁸ m/s / 5.62 ×10²⁴ s⁻¹

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7 0
3 years ago
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