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Bess [88]
3 years ago
9

(only reply if you know the answer or get reported) Please solve this ty​

Chemistry
1 answer:
kolezko [41]3 years ago
4 0

Answer:

7) 50 8)4

Explanation:

I answered the question what do you want to gave me

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Calculate the distance that a man walked if it took him 42 seconds to walk at a speed of 3m/s.
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126 m

Explanation:

Distance=time*speed➡42*3=126m.

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Fumaric acid, which occurs in many plants, contains, by mass, 41.4% carbon, 3.47% hydrogen, and 55.1% oxygen. The molecular mass
lukranit [14]

Answer:

Explanation:

C = 41.4/12 = 3.43

H = 3.47/1 = 3.47

O = 55.1/16 =3.44

CHO is the skeletal formula (divide each by the lowest number above). The results are close enough to 1 to be 1.

(CHO)_x = 116

C + H + O = 29

(29) _ x = 116

x = 116/29

x = 4

So there area 4 carbons 4 hydrogens and 4 oxygens.

The correct formula is C4H4O4

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3 years ago
What are the rules for writing chemical formulas
Alenkasestr [34]
1: the symbol of the metal should be written first.
2: the valency of the elements or radicals should be interchanged.
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An atom with 4 protons and 4 neutrons Is called?
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