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rosijanka [135]
3 years ago
14

A sample of neon gas at 102 °C and a volume of 4 liters is cooled to -98 °C. What is the new volume

Chemistry
1 answer:
STALIN [3.7K]3 years ago
8 0

Answer: V= 1.87 L

Explanation: Use Charles Law to solve for the new volume.

V1/T1 = V2/T2 where temperature is in Kelvin. So convert temperature to Kelvin.

4 L ( 175 K ) / 375 K

= 1.87 L

Cancel out both units of K.

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What causes the Moon to be illuminated?
alexgriva [62]

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reflection

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hope it helps

8 0
2 years ago
Why are metallic crystals malleable and ductile? A. The electrons are free floating, allowing them to move with the atoms when t
jok3333 [9.3K]

Answer:

D. The atoms are arranged with alternating positive and negative charges. When struck, the lattice shifts putting positives against positives and negatives against negatives.

Explanation:

Metallic crystals takes their properties as a result of metallic bonds in between the atoms.

Metallic bond is actually the attraction between the positive nuclei of all the closely packed atoms in the lattice and the electron cloud jointly formed by all the atoms by losing their outermost shell electrons this is by virtue of their low ionization energy.

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7 0
4 years ago
Which of the following molecules or ions is polar? (20 POINTS)
taurus [48]

<u>For NO3- molecule(fig.1)</u>

1.  Bonds are created between elements with different electronegativity, most bonds would be polar. Bonds in NO3 are polar.

2. In the geometry of the molecule  bond polarities cancel out each other (since it is a vector) so NO3- ion molecule is non polar

3.   Nitrate (NO3-)ion  geometry would be trigonal planar

<u>For CCl4 molecule(fig.2)</u>

1. Bonds are created between elements with different electronegativity, most bonds would be polar. Bonds in CCl4 are polar.

2. It is a completely symmetrical molecule.

3.Carbon is the centre of CCl4 have four covalent bonds and it has no lone pairs. They are all equidistant the C-Cl bond polarities cancel out. So CCl4 molecule is non polar

<u>For NH3 molecule(fig.3)</u>

1. Bonds are created between elements with different electronegativity, most bonds would be polar. Bonds in NH3 molecule are polar.

2.  it has a pyramidal structure.

3. the individual N-H bond dipoles don't cancel out. This dipole moment for the molecule indicates that NH3 is a polar molecule

<u>For SF6 molecule(fig.4)</u>

1.F is more electronegative than S. So the bonds are polar.

2. The symmetry of the molecule is  symmetrical so that the dipole moments of bonds cancel correspond so the molecule is non-polar.

3. it has octahedral structure



3 0
4 years ago
3) Which element is the 2s orbital closest to the nucleus?
Ber [7]
Answer mgjvguvjngujgguhggj
8 0
3 years ago
Which statement is true about elements in a period on the periodic table?
frozen [14]

Answer:

they have differnet properties that repeat across the next period

Explanation:

5 0
3 years ago
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