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Mice21 [21]
2 years ago
6

The balls in a modeling kit representing different elements are often distinguished by color. however, there are other ways to i

dentify the elements. beyond color, what differences do you expect between the atoms of distinct elements in a modeling kit?
select one or more:
a. the arrangement of holes in the atoms
b. the material that makes up the atoms
c. the comparative size of the atoms
d. the number of holes in the atoms
Chemistry
1 answer:
nika2105 [10]2 years ago
5 0

The size of the atoms a and the number of holes in the atoms can be used to decode the element.

<h3>What are models?</h3>

A model is a miniature depiction of reality. Molecular models often consists of boxes that contain balls which are used to represent elements. In common parlance, the color is used to show the type of element.

Apart from the color, the size of the atoms a and the number of holes in the atoms can be used to decode the element.

Learn more about molecular models:brainly.com/question/156574

#SPJ1

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1.35

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6 0
3 years ago
How many atoms are in 5 grams of H2O?
mojhsa [17]

Hello!

We know that by the Law of Avogrado, for each mole of substance we have 6.02 * 10²³ atoms, if:

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H = 2 * (1u) = 2u

O = 1 * (16u) = 16u

---------------------------

The molar mass of H2O = 2 + 16 = 18 g / mol

If:

1 mol we have 6.02 * 10²³ atoms

1 mole of H2O we have 18 g

Then we have:

18 g ------------- 6.02 * 10²³ atoms

5 g -------------- x

\dfrac{18}{5} = \dfrac{6.02*10^{23}}{x}

18*x = 5*6.02*10^{23}

18\:x = 3.01*10^{24}

x = \dfrac{3.01*10^{24}}{18}

\boxed{\boxed{x \approx 1.672*10^{23}\:atoms}}\end{array}}\qquad\checkmark

I Hope this helps, greetings ... DexteR! =)

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