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Marcie B. for tutoring lessons in Owensboro KY WyzAnt Tutoring Tutor Tutor United States

Marcie B.

Certified chemistry teacher

Owensboro, KY (42303)

Travel Radius 35 miles
Hourly Fee $40.00
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Marcie's Responses in WyzAnt Answers

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Chemistry

a molecule having a covalent bond can be ionic true or false?

it is a true or false question

 

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Asked by Greg from Grand Rapids, MI
00

Marcie's Answer:

Polyatomic ions involve sharing of electrons (covalent) and gaining/losing electrons (ionic) to fulfill their octet. 

ChemistryLewis Dot DiagramMoleculesNoble Gases

Which Lewis Dot Diagram could represent a noble gas?

1. X (Two dots at top)

2. X (Dots all around except on right, only has one instead of two)

3. X (One on the right)

4. X (Dots all around except on left, only has on instead of two)

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Asked by Emma from Richmond, VA
00

Marcie's Answer:

Most noble gases have 8 dots, two on each side but Helium has only two dots to complete its energy level, so 1 would be the correct response
Chemistry

Which substance is the best conductor?

1.) NaCl(s) 2.) NaCl(aq) 3.) H2O(s) 4.) H20(g) I honestly don't understand this question. Conductor of what?

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Asked by Emma from Richmond, VA
00

Marcie's Answer:

Covalently bonded substances like water tend to be nonelectrolytes, which do not conduct electricity. Solid NaCl has its parts "locked" in place so electricity won't flow. The aqueous NaCl, means dissolved in water so the water separates the compound into ions and the ions allow it to be an electrolyte and conduct electricity.

Marcie's Hourly Rate

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