2 years ago

What percentage of boys Chose walking

Chemistry

1 answer:

mafiozo [28]2 years ago

6 0

It would of been nice if you were to post your question so others could actually answer it.

You might be interested in

The blue colour of the sky results from the scattering of sunlight by air molecules. Blue light has a frequency if about 7.5*10^

erastovalidia [21]

Answer: The energy of a mole of photon associated with this frequency is $49.5\times 10^{-20}J$

Explanation:

The energy and frequency are related by :

$E=N\times h\times \nu$

E = energy of photon

N = number of moles = 1

h = planks constant = $6.6\times 10^{-34}Js$

$\nu$ = frequency = $7.5\times 10^{14}Hz$

$E=1\times 6.6\times 10^{-34}Js\times 7.5\times 10^{14}s^{-1}=49.5\times 10^{-20}J$

The energy of a mole of photon associated with this frequency is $49.5\times 10^{-20}J$

6 0

2 years ago

Ight I just here’s my first one

MatroZZZ [7]

Answer:

Explanation:

6 0

2 years ago

On a cold morning, the smoke coming out of a chimney is observed to be in blue color. What could be the reason? Name the effect

nirvana33 [79]

Stack effect? I'm not totally sure about this...

Explanation:

Large amount of tiny particles of water droplets, dust and smoke are present on a misty day. These tiny particles in the air scatter blue colour of white light passing through it. When this scattered light reaches our eyes, the smoke appears blue.

6 0

3 years ago

PLEASE ANSWER AS QUICKLY AS POSSIBLE THANK YOU SO MUCH

Harlamova29_29 [7]

Answer:

This description needs a unit describing the system of measurement.

6 0

1 year ago

How many moles are in 20 grams of Ar?

pashok25 [27]

Answer:

moles Ar in 20g = 0.500 mole Ar

Explanation:

moles = grams given / formula weight = 20g / 39.948g·mol⁻¹ = 0.500 mole Ar

7 0

2 years ago