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2 years ago

Which layer of the earth is the coolest in temperature?

Chemistry

1 answer:

PilotLPTM [1.2K]2 years ago

5 0

Answer:

B) Crust

Explanation:

It's the farthest layer from the core listed.

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The d subshell can hold up to 10 electrons in an atom. <br> True <br> False

iris [78.8K]

Answer:

TRUE

Explanation:

Each electronic shell in an atom is composed of subshells, which are denoted by the symbol s, p, d and f. These subshells are represented by the principal quantum number (n) and the azimuthal quantum number (ℓ).

Each subshell can hold a fixed number of electrons, which is equal to (4ℓ + 2) electrons.

For, d subshell the value of ℓ = 2.

<u>Therefore, the maximum number of electrons that a d-orbital can hold = (4ℓ + 2) electrons = (4×2 + 2) electrons = 10 electrons.</u>

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2 years ago

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Explain what happens during a solar eclipse

erma4kov [3.2K]

Answer:

a solar eclipse is when the moon moves between the earth and the sun, so the moon casts a shadow on the earth

Explanation:

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2 years ago

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A meal containing a burger, fries, and a milkshake contains 53.0 grams of fat, 38.0 grams of protein, and 152 grams of carbohydr

RSB [31]

Answer:

286 minutes

Explanation:

Given the content of fat in a meal= 53g

the content of protien in a meal= 38g

the content of carbohydrate in a meal= 152g

Also given that fuel value of protien = 17 KJ/g

the fuel value of fat = 38 KJ/g

the fuel value of carbohydrate = 17 KJ/g

Now to burn all the molecules the energy recquired is content of molecule times the fuel value.

the energy recquired to burn fat = $53\times 38=2014KJ$

the energy recquired to burn protien = $38\times 17=646KJ$

the energy recquired to burn carbohydrate = $152 \times 17=2584KJ$

The total energy=2014+646+2584=5244KJ

The energy spent on swimming is 1100KJ/hour

for 1 hour 1100 KJ are spent

to spend 5244 KJ of energy the time taken is = $\frac{5244}{1100}$ =4.76hours

We know 1 hour=60 minutes

The total time = $4.76\times 60=286minutes$

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2 years ago

A particle of light has a wavelength of 7.0×10−7 m. What color of light is represented and what is the amount of energy released

Alisiya [41]

Answer:

red and 4.6×10^-40

Explanation:

The energy of a foton is calculated by thefollowing formula: Efoton=h×(c/lapda). Fill in 7.0×10^-7 gives us Efoton=6.626×10^-34 (planck constant) × 7.0×10^-7=4.6×10^-40.

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2 years ago

Choose the element described by the following electron configuration.

earnstyle [38]

The correct option is ARGON.
To quickly find out the element that is been described by the electronic configuration, write down and add together all the index figures in the electronic configuration. The index figures in the above electronic configuration are 2, 2, 6, 2 and 6. If you add all these figures together, you will get 18 and the element that has the atomic number of 18 is argon.

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2 years ago

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