2 years ago

Visible light is a part of what spectrum

Chemistry

1 answer:

Volgvan2 years ago

6 0

Answer:

Visible Spectrum/Electromagnetic spectrum

Explanation:

The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye.

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Another word for "basic" is?

natita [175]

Answer: Fundamental, Key, vital, crucial

Explanation:

5 0

2 years ago

Read 2 more answers

On average, Earth’s crust contains about 8.1% aluminum by mass. If a standard 12-ounce soft drink can contains approximately 15

MrMuchimi

Answer:

5400 cans

Explanation:

First we convert the total weight, 1 ton, to grams:

$1ton=1x10^{6}g$

Now we need to know the mass of aluminum:

$m_{Al}=\frac{10^{6}*8.1}{100} =81000g$

Now we make the relation between the mass of aluminum in 1 ton of the earth's crust and the mass of aluminum per can:

$n=\frac{81000g}{15g/can} =5400cans$

8 0

3 years ago

A gaseous mixture contains 443.0 Torr H 2 ( g ) , 369.9 Torr N 2 ( g ) , and 82.7 Torr Ar ( g ) . Calculate the mole fraction, χ

mr_godi [17]

Answer:

χH₂ = 0.4946

χN₂ = 0.4130

χAr = 0.0923

Explanation:

The total pressure of the mixture (P) is:

P = pH₂ + pN₂ + pAr

P = 443.0 Torr + 369.9 Torr + 82.7 Torr

P = 895.6 Torr

We can find the mole fraction of each gas (χ) using the following expression.

χi = pi / P

χH₂ = pH₂ / P = 443.0 Torr/895.6 Torr = 0.4946

χN₂ = pN₂ / P = 369.9 Torr/895.6 Torr = 0.4130

χAr = pAr / P = 82.7 Torr/895.6 Torr = 0.0923

3 0

3 years ago

What is the relationship between the mass of the boat and the mass of the displaced<br> liquid?

Greeley [361]

Answer: The mass of the displaced liquid is equal to the volume of the liquid multiplied by its density. When a boat is placed in water, the volume of displaced water is equal to the mass of the boat.

I hope this helped!

7 0

2 years ago

Who taught us how planets move?

alexdok [17]

Answer:

It is <u>KEPLER</u>

Explanation:

Kepler defined the sun's orbit.

okay.

6 0

2 years ago