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NeTakaya
3 years ago
15

Whats the most common chemical element in the earths crust?

Chemistry
1 answer:
Alchen [17]3 years ago
5 0

Answer:

Oxygen

Explanation:

it is 47% of the earth's crust.the 2nd would be silicon if you wanted to know.

have a good day maam!

You might be interested in
Give the empirical formula for C↓8H↓8
mr_godi [17]

Answer:

Empirical formula of  C₈H₈ =  CH

Explanation:

Data Given:

Molecular Formula = C₈H₈

Empirical Formula = ?

Solution

Empirical Formula:

Empirical formula is the simplest ration of atoms in the molecule but not all numbers of atoms in a compound.

So,

tha ration of the molecular formula should be divided by whole number to get the simplest ratio of molecule

        C₈H₈ Consist of  Carbon (C), and Hydrogen (H)

Now

Look at the ratio of these two atoms in the compound

                         C : H

                         8 : 8

Divide the ratio by two to get simplest ratio

                          C : H

                       8/8 : 8/8

                         1   :  1

So for the empirical formula is the simplest ratio of carbon to hydrogen 1 : 1

So the empirical formula will be

                     Empirical formula of  C₈H₈ =  CH

4 0
3 years ago
Hellllpppppppp helppppppppp
mixas84 [53]

Answer :

Charles's Law : It is defined as the volume is directly proportional to the temperature of the gas at constant pressure and number of moles.

Mathematically,

V\propto T

                                Boiling water bath        Cool bath 1       Cool bath 2

Temperature (⁰C)                  99                              17                       2

Temperature (K)(T)    273+99=372             273+17=290      273+2=275

Volume of water                  0.0                             27.0                34.0

in cool flask (mL)

Volume of water=              135.8                           135.8               135.8

Air in flask (mL)

Volume of air                    135.8                           108.8               101.8

in cool flask (V)

\frac{V}{T}                                \frac{135.8}{372}=0.365             \frac{108.8}{290}=0.375         \frac{101.8}{275}=0.370

The graph volume versus temperature for a gas is shown below.

3 0
3 years ago
This is agree or disagree I need help ASAP!!
julsineya [31]

Answer:

disagree

sometimes they attract

Explanation:

8 0
2 years ago
Read 2 more answers
How many moles are in 12.9 grams of Fe?
amid [387]

Answer:

0.1677 is the answer

Explanation:

6 0
2 years ago
Read 2 more answers
Which of the following processes rearranges atoms during a reaction?
Setler79 [48]
A) Burning
Burning is a chemical reaction while the other three answers are physical reactions.
5 0
3 years ago
Read 2 more answers
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