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kifflom [539]
3 years ago
6

Plsssss help quick will give you a brainly for the best answer

Chemistry
2 answers:
Lorico [155]3 years ago
6 0
What’s the question?
azamat3 years ago
3 0

Answer:

you did not add a question so I cannot help you out sorry

Explanation:

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Which statement supports one of Dalton's contributions to the atomic theory?
Mnenie [13.5K]
<span>C) The element nitrogen is made up of carbon and nitrogen</span>
6 0
3 years ago
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Maleic acid is an organic compound composed of 41.39% , 3.47% , and the rest oxygen. If 0.378 mole of maleic acid has a mass of
storchak [24]

Answer:

Empirical CHO

molecular C4H4O4

Explanation:

From the question, we know that it contains 41.39% C , 3.47% H and the rest oxygen. To get the % composition of the oxygen, we simply add the carbon and hydrogen together and subtract from 100%.

This means : O = 100 - 41.39 - 3.47 = 55.14%

Next is to divide the percentage compositions by their atomic masses.

C = 41.39/12 = 3.45

O = 55.14/16 = 3.45

H = 3.47/1 = 3.47

Now we divide by the smallest value which is 3.45. We can deduce that this will definitely give us an answer of 1 all through as the values are very similar.

Hence the empirical formula of Maleic acid is CHO

Now we go on to deduce the molecular formula.

To do this we need the molar mass. I.e the amount in grammes per one mole of the compound.

Now we can see that 0.378mole = 43.8g

Then 1 mole = xg

x = (43.8*1)/0.378 = 115.87 = apprx 116

[CHO]n = 116

(12 + 1 + 16]n = 116

29n = 116

n = 116/29 = 4

The molecular formula is thus C4H4O4

5 0
3 years ago
WILL GIVE BRAINLIEST ANSWER
OleMash [197]
The correct Answer based on my calculations is C
7 0
3 years ago
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The specific shape that an electron moves in inside a sub-level_____
VashaNatasha [74]

Answer:

The specific shape that an electron moves in inside a sub-level <em><u>shell</u></em><em><u>.</u></em>

6 0
3 years ago
Problem:
adelina 88 [10]

Answer:

it is Calcium (Ca)

4th period, 2nd group, 2 valence electrons

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