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3 years ago

12

A geologist visits Jessica’s classroom. He shows the class a diagram of different landforms. Which of the landforms is created b

y earth materials being deposited?
A. Cave
B. River delta
C. Canyon
D. Mountain

1 answer:

guajiro [1.7K]3 years ago

6 0

C ................... is the answer

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If a solid piece of naphthalene is heated and remains at 80°C until it is completely melted, you know that 80ºC is the

Rom4ik [11]

Answer: Melting point of the naphthalene is 80 $^oC$ .

Explanation:

Melting point of a substance is temperature at which given solid changes its state from solid to liquid. It is also referred as freezing point of the substance.

Freezing point of substance is a temperature at which given substance changes its state from liquid to solid.

Here, the solid piece of naphthalene is heated and remains at 80°C until it is completely melted.

6 0

3 years ago

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How many electrons are present in an uncharged atom with its 1s, 2s, 2p, 3s, 3p and 4s subshells filled and with five electrons

marshall27 [118]

25

Explanation

The orbital quantum number of an atomic subshell determines the maximum number of electrons it can contain. For example:

Each $s$ orbital $(l = 0)$ holds up to $4 \; l + 2 = 2$ electrons
Each $p$ orbital $(l = 1)$ holds up to $4 \; l + 2 = 6$ electrons
Each $d$ orbital $(l = 2)$ holds up to $4 \; l + 2 = 10$ electrons

The atom in question here contains four fully-occupied $s$ orbitals, two fully-occupied $p$ orbitals along with $5$ electrons in a partially-occupied $d$ orbital. It thus contains

$4 \times 2 + 2 \times 6 + 5 = 25 \; \text{electrons}$

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3 years ago

Would carbon dioxide or water have a higher boiling point? Explain.

oee [108]

Answer:

Water acutually has a higher boiling point because CO2 will turn into a gas form at a certain temp ( -78 C), so CO2 wouldn't really boil very long.

Hope this helps:)

7 0

4 years ago

Why do night bird have extraordinary night vision

alexira [117]

Answer:

The low light eye sight depends on the rod cells of the eye,and the birds have more amount of rod cell in their eyes, that's why they have an extraordinary night vision

4 0

1 year ago

HELP ASAP no longer than 30 seconds

stich3 [128]

Answer:

orange

Explanation:

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3 years ago

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