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Olin [163]
3 years ago
15

What makes bullet holes wider on the exit side of a piece of glass?

Chemistry
2 answers:
denpristay [2]3 years ago
6 0
The rounded shape of the bullet because as it goes through the glass it stops spinning and this make the hole wider
il63 [147K]3 years ago
6 0

Answer:

The correct answer is "The arc, or trajectory, of the bullets path".

Explanation:

During forensic examination, glass fracture analysis helps to understand the position of the attacker by analyzing how a bullet penetrated the glass. One way to understand this is by seeing where the bullet holes are narrower. Usually, bullet holes wider on the exit side of a piece of glass, which is explained by the arc, or trajectory, of the bullets path. Therefore the narrower site of the hole indicates the position at which the bullet entered the glass, and the wider site indicates the position at which the bullet exit the glass.

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For the chemical equation SO 2 ( g ) + NO 2 ( g ) − ⇀ ↽ − SO 3 ( g ) + NO ( g ) the equilibrium constant at a certain temperatur
MakcuM [25]

Answer:

Moles of NO₂ = 0.158

Explanation:

                         SO 2 ( g ) + NO 2 ( g ) ⇄  SO 3 ( g ) + NO ( g )

              According to the law of mass equation

                                     

                                       K_{c} = \frac{[SO_{3} ][NO]}{[SO_{2}][NO_{2}  ]}

                              ⇒   3.10 = \frac{(1.00)(1.00)}{(2.30) [NO_{2} ]}    At equilibrium [SO₃] = [NO]

                              ⇒ [NO₂] = \frac{1}{6.3}

                              ⇒ [NO₂] = 0.158

So. number of moles of NO₂ at equilibrium added = 0.158

8 0
3 years ago
Select the property that is not a characteristic of an ideal recrystallization solvent.
dybincka [34]

Answer:

(C) The recrystallization solvent should be nonvolatile.

Explanation:

Recrystallization is the separation technique which is used to purify the solid compounds in their crystal or amorphous form.

Some properties follow the recrystallization process as:

The solids are more soluble in hot solvent as compared to the solubility in the cold solvent.

The solvent must have lower boiling point and can be volatile easily.

The solvent should not react with the compound.

The impurities must be soluble in the cool solvent, so that only the pure product crystallizes.

Hence, Answer - C which is not an ideal characteristic.

8 0
3 years ago
Magnesium and iron are metallic elements. How does a mole of magnesium compare with a mole of iron? A mole of iron has more atom
grandymaker [24]

Answer:

They both have the same number of atoms

Explanation:

The number that indicates the amount of particles in a compound is the Avogadro's number (NA).

It does not matter the mass of compound we have, If we have 1 mol we will be sure that we are talking about 6.02×10²³ particles

6.02×10²³ represents the amount of atoms in twelve grams of 12-pure carbon and it is considered a reference to measure the amount of all kinds of substances present in a given system.

8 0
3 years ago
What part of an Atom undergoes change during radioactive decay
Aloiza [94]
It is clear that the core is subject to change
7 0
2 years ago
I need help please ​
Alex17521 [72]

Answer: If you think about it, B. would be the most reasonable answer with the given factors.

4 0
2 years ago
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