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3 years ago

Lakes, rivers, or springs can form when:

Chemistry

2 answers:

adell [148]3 years ago

5 0

Answer:

D.) rain water seeps into the ground

Explanation:

Obviously?

Verdich [7]3 years ago

3 0

I think it’s B if not D Good luck :)

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Explain The relationship between engineering science and technology

erik [133]

The Difference Between Science, Engineering, and Technology. Science is the study of the natural world as it is; engineering is creating new tools, devices, and processes based on scientific knowledge; technology is the sum total of all the engineered tools, devices and processes available.

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3 years ago

Describe what is happening when we see the color black. why do we see white?

sineoko [7]

Probably when u close your eyes you’d see black or whenever you about to past out

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3 years ago

Read 2 more answers

Which elements have the quantum numbers (4,3,-2,+1/2) and (5,2,-1,-1/2)

nikklg [1K]

The elements are samarium (Sm) and silver (Ag).

Quantum numbers (4,3,-2,+½)

n = 4: Principal quantum number = 4.

l = 3: Element has 4f electrons

It is conventional to list quantum numbers in decreasing order.

Hund’s rule states that all the orbitals must be half-filled with electrons having the same spin before any can receive a second electron.

We get the following table:

Element n l mₗ mₛ

La 4 3 3 +½

Ce 4 3 2 +½

Pr 4 3 1 +½

Nd 4 3 0 +½

Pm 4 3 -1 +½

Sm 4 3 -2 +½

The element is samarium, Sm.

Quantum numbers (5,2,-1,-½)

n = 5: Principal quantum number = 5.

l = 2: Element has 5d electrons

We get the following table:

Element n l mₗ mₛ

Y 5 2 2 +½

Zr 5 2 1 +½

Nb 5 2 0 +½

Mo 5 2 -1 +½

Tc 5 2 -2 +½

Ru 5 2 2 -½

Rh 5 2 1 -½

Pd 5 2 0 -½

Ag 5 2 -1 -½

The element is silver, Ag.

Note: These assignments assume that there are no exceptions in the Periodic Table.

7 0

4 years ago

What would happen if the Earth was tilted at 45⁰ rather than 23.5⁰?

denis23 [38]

Answer:

it would cause global warming

Explanation: hope this helps

4 0

3 years ago

A solid sample of a compound and a liquid sample of the same compound are each tested for electrical conductivity. which test co

marshall27 [118]

If these are you choices:
(1) Both the solid and the liquid are good conductors.

(2) Both the solid and the liquid are poor conductors.

(3) The solid is a good conductor, and the liquid is a poor conductor.

(4) The solid is a poor conductor, and the liquid is a good conductor.

Then the answer is number 4. This is because ionic compound conducts electricity when it is dissolved in water.

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4 years ago