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3 years ago

Describe how the periodic table differentiates between metals and nonmetals.

1 answer:

6 0

Most of the elements on the periodic table are metals...generally speaking...metals occur on the left side of the periodic table, and non-metals occur on the right side of the periodic table...

<span>...check out the periodic table locate at: http://www.elementsdatabase.com/ </span>
<span>look at the second colored periodic table...take a look at the key for this table...notice that the non-metals are colored white or red...all other elements would therefore be metals... </span>

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When glass is formed, which of these takes place FIRST? A) The sand turns to liquid. B) The molecules become hard. C) The sand i

otez555 [7]

I would say D and if that's not it it's A

Hope This Helps! Have A Nice Day!!

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4 years ago

Read 2 more answers

Draw the correct structural formula for the following compounds:

Anvisha [2.4K]

Answer:

Explanation:

a) H3C-CH=CH-CH2-CH3

b) CH3 CH3

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CH3-C- CH- CH2- CH-CH3

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C2H5 C2H5

c) C2H5

CH3-C=CH-CH-CH2-CH-CH3

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CH3 CH3

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4 years ago

Please help will give brainliest

DochEvi [55]

Answer:

Number of moles = 1.57 mol

Explanation:

Given data:

Mass of propanol = 94.1 g

Molar mass of propanol = 60.1 g/mol

Number of moles of propanol = ?

Solution:

Formula:

Number of moles = mass/molar mass

by putting values,

Number of moles = 94.1 g/ 60.1 g/mol

Number of moles = 1.57 mol

5 0

4 years ago

When one material disperses in another due to the random motion of particles, it is called _____. boiling vaporization diffusion

Karo-lina-s [1.5K]

The correct answer would be diffusion

8 0

3 years ago

Read 2 more answers

If a reaction releases 675,000 Joules, how many kcal does it release?

Mamont248 [21]

Answer: If a reaction releases 675,000 Joules then it means it releases 161.328872 kcal.

Explanation:

According to the standard conversion,

$1 Joule = 0.000239006 kcal$

Therefore, 675,000 Joules will be converted into kcal as follows.

$1 Joule = 0.000239006 kcal\\675,000 J = 675000 J \times \frac{0.000239006 kcal}{1 J}\\= 161.328872 kcal$

Thus, we can conclude that if a reaction releases 675,000 Joules then it means it releases 161.328872 kcal.

5 0

3 years ago