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2 years ago

How many atoms are in nitrogen

1 answer:

3 0

Nitrogen is expressed with this formula:

$N_{2}$ which means that every nitrogen molecules is composed of two atoms.

Hope it helped,

Happy homework/ study/ exam!

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I need help!! i need to make it like 3:2

anyanavicka [17]

Answer:

use visual studio code and put in this print{3:2}-1

Explanation:

4 0

2 years ago

What is the product of photosynthesis that plants make as a source of energy for their life functions? What role does this subst

kaheart [24]

Glucose. Also provides heat and energy in man

4 0

1 year ago

A bumblebee flies with a ground speed of 15.0 m/s . Calculate its speed in km/h.

zheka24 [161]

Speed in km/hr = 15 x 18
------------
5

= 54 km/hr.

Hope this helps!

5 0

2 years ago

Read 2 more answers

The energy of a photon needed to cause ejection of an electron from a photoemissive metal is expressed as the sum of the binding

slega [8]

Answer:

$Binding\ energy=43.43\times 10^{-20}\ J$

Explanation:

Using the expression for the photoelectric effect as:

$E=h\nu_0+\frac {1}{2}\times m\times v^2$

Also, $E=\frac {h\times c}{\lambda}$

$\nu_0=\frac {c}{\lambda_0}$

Applying the equation as:

$\frac {h\times c}{\lambda}=\frac {hc}{\lambda_0}+\frac {1}{2}\times m\times v^2$

Where,

h is Plank's constant having value $6.626\times 10^{-34}\ Js$

c is the speed of light having value $3\times 10^8\ m/s$

$\lambda$ is the wavelength of the light being bombarded

Given, $\lambda=4.00\times 10^{-7}\ m$

$\frac {hc}{\lambda_0}$ is the binding energy or threshold energy

$\frac {1}{2}\times m\times v^2$ is the kinetic energy of the electron emitted. = $6.26\times 10^{-20}\ J$

Thus, applying values as:

$\frac{h\times c}{\lambda}=Binding\ Energy+Kinetic\ Energy$

$\frac{6.626\times 10^{-34}\times 3\times 10^8}{4.00\times 10^{-7}}\ J=Binding\ Energy+6.26\times 10^{-20}\ J$

$\frac{19.878}{10^{19}\times \:4}\ J=Binding\ Energy+6.26\times 10^{-20}\ J$

$49.69\times 10^{-20}\ J=Binding\ Energy+6.26\times 10^{-20}\ J$

$Binding\ energy=43.43\times 10^{-20}\ J$

5 0

2 years ago

What is the definition of solute

sdas [7]

Answer:

a substance that can be dissolved by a solvent to create a solution

Explanation:

8 0

2 years ago

Read 2 more answers