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valina [46]
3 years ago
14

What's what's the Lewis structure for 2H2O ​

Chemistry
1 answer:
Umnica [9.8K]3 years ago
5 0

Lewis Structure:

H -- O -- H (bent, Oxygen has 2 lone pairs)

Percent Composition

Hydrogen percent composition = [ 2 * (Hydrogen mass) ] / [Total mass of H2O]

Oxygen percent composition = [Oxygen mass] / [Total mass of H2O]

dose this make any sense...??

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Verdich [7]

Answer: A:5 B:2 C:15 D:8 E:O

Explanation:

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3 years ago
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Balance the reaction. A coefficient of "1" is understood. Choose option "blank" for the correct answer if the coefficient is "1.
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What is the acceleration of the object’s motion? 0.5 m/s2 -0.5 m/s2 2 m/s2 -2 m/s2
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Explanation:

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              u  =  initial velocity

              t   =  time

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5 0
3 years ago
On which of the following objects will the earth exert a greater gravitational pull than on a baseball?
dem82 [27]

Answer:

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5 0
2 years ago
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How many grams of NaCl are required to make 150.0 mL of a 5.000 m solution
Oksi-84 [34.3K]

The  grams   of NaCl  that are required  to  make  150.0 ml of  a  5.000 M  solution is  43.875 g


calculation

Step 1:calculate  the  number of moles

moles =  molarity  x volume  in L

volume  = 150 ml / 1000 = 0.15 L

= 0.15 L  x 5.000  M  = 0.75  moles

Step 2:  calculate mass

mass =  moles x  molar mass

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mass is therefore =0.75  moles  x 58.5  mol /l =43.875 g

4 0
3 years ago
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