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Ahat [919]
1 year ago
6

Which term describes this molecular shape?

Chemistry
1 answer:
ICE Princess25 [194]1 year ago
4 0

Answer:

B.) Trigonal planar

Explanation:

This molecule has 3 bonds and no lone pairs. The angles are all 120° and the bonds are within the same plane. These molecules have the molecular shape of trigonal planar.

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Tim wants to store 0.122 moles of helium gas at 203 kPa and 401 K. Which is the volume of the helium gas needed for storage?
algol13

 The  volume  of Helium gas needed for storage  is 2.00 L (answer C)


 <u><em> calculation</em></u>

 The volume of Helium is calculated using ideal gas equation

That is Pv =nRT

where;

 P( pressure) = 203 KPa

V(volume)=?

n(number  of moles) =  0.122 moles

R(gas constant) = 8.314  L.Kpa/mol.K

T(temperature)= 401 K

make V the  subject of the formula  by diving both side  by P

V=nRT/p

V={[0.122  moles x 8.314 L. KPa/mol.K  x 401 K]  / 203 KPa} = 2.00 L


3 0
3 years ago
Setting up a one-step unit conversion A student sets up the following equation to convert a measurement. (The ? stands for a num
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Answer:

0.0008 m

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We know that

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1 cm =\frac{1}{100} m

Therefore, 0.080 cm =\frac{1}{100}\times 0.080 m

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0.080 cm =\frac{8}{10000}m

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7 0
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When two your substances are combined so that each of the pure substances retains its own properties the result is a(n)?A. mixtu
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Mixture is the answer 
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If your end product is 1.5 moles of KMnO 4 how many moles of manganese oxide were used in the reaction? The equation for the pro
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3 years ago
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