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GenaCL600 [577]

3 years ago

13

the comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustr

ate

2 answers:

vampirchik [111]3 years ago

5 0

The atoms are very small hope this helps.

Ghella [55]3 years ago

5 0

that in a copper penny, there is one atom for every person on Earth

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What is the energy of light with a wavelength of 697 nm?

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Answer:

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8 0

3 years ago

A sealed flask contains 3.82 x 1024 molecules of CO, How many moles of Co, are in the flask?

Lynna [10]

Answer:

3.82 × 1024

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4 0

2 years ago

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What type of substances is filtration useful for seperating? Give me an example.

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3 years ago

192 grams of (NH 4 ) 2 CO 3 (N Molar Mass : 96g ) are dissolved to make 2150 mL of solution , what is the concentration of this

svlad2 [7]

The concentration of a solution of 192 grams dissolved to make 2150 mL of solution is 0.93M. Details about concentration can be found below.

<h3>How to calculate concentration?</h3>

The concentration of a solution can be calculated by dividing the number of moles of the substance by its volume.

no of moles of NH42CO3 = 192g ÷ 96g/mol = 2 mol

Concentration of solution = 2 moles ÷ 2.15L

Concentration of solution = 0.93M

Therefore, the concentration of a solution of 192 grams dissolved to make 2150 mL of solution is 0.93M.

Learn more about concentration at: brainly.com/question/22997914

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4 0

2 years ago

1. Describe the particles and their motion in solids, liquids, gasses, and plasma. 2. Explain the law of conservation of mass. G

Andru [333]

Answer:

I'll do #1

Explanation:

Solids:They are molecules packed together and contain the least amount of kinetic energy

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Plasma:Largest part of your blood

Hope This Helppps!!Good Luck!!!

5 0

3 years ago