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3 years ago

Which is a charectoristic of all waves

Chemistry

1 answer:

ch4aika [34]3 years ago

3 0

Answer:

All kinds of waves have the same fundamental properties of reflection, refraction, diffraction and interference, and all waves have a wavelength, frequency, speed and amplitude. A wave can be described by its length, height (amplitude) and frequency. All waves can be thought of as a disturbance that transfers energy.

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You have 4.72x10^25 atoms of a substance with MW of 136.94 g/mol How many moles do you have

slega [8]

Number of moles = 78.41

<h3>Further explanation </h3>

The mole is the number of particles(molecules, atoms, ions) contained in a substance

1 mol = 6.02.10²³ particles

Can be formulated

N=n x No

N = number of particles

n = mol

No = Avogadro's = 6.02.10²³

4.72 x 10²⁵ atoms of a substance, then moles :

$\tt n=\dfrac{N}{No}\\\\n=\dfrac{4.72\times 10^{25}}{6.02\times 10^{23}}\\\\n=78.41$

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2 years ago

A biochemist conducted an experiment to follow the movement of glucose molecules in animal cells. Glucose with radioactively lab

Airida [17]

Answer:

Here is a link I made for you

http://chs.helenaschools.org/wp-content/uploads/sites/32/2018/05/2016-2017-AP-Biology-Exam-Review.docx

Explanation:

This explanes all of what you need along with helpful videos an other things I found intersting for you HOPE IT HELPS YOU YOUR WELCOME.

6 0

3 years ago

How many moles are in 7.8g of CaO?

Bess [88]

This compound is also known as Calcium Oxide. The SI base unit for amount of substance is the mole. 1 grams CaO is equal to 0.017832495800447 mole. Note that rounding errors may occur, so always check the results.

Hope I helped :)

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3 years ago

What explanation accounts for the observation that the mass of the products in reaction #1 (open system) were not equal?

Anna007 [38]

Answer:

The law of conservation of mass states that matter can not be created or destroyed in a chemical reaction.

Explanation:

5 0

2 years ago

Can anyone help me with my chemistry question?

loris [4]

Hi!

1) electrons
2) Chadwick
3) J. J. Thompson
4) Bohr
5) Rutherford
6) Dalton
7) Nucleus

I hope this helps!

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3 years ago