Which can associate a suspect and the firing of a gun?( its not b )
A) markings on the gun's exterior
B) markings on the casing
C) markings on the bullet
D) powder residues

Answers

Answer 1

Answer:

One that is can associate a suspect and the firing of a gun is powder residues. The correct option is D.

What is gun power residue?

GSR is made up of unburned or partially burned gunpowder particles, soot, nitrates, and nitrites from powder combustion, primer particles (oxides of lead, antimony, and barium), and bullet or bullet jacket particles that are vaporized when a firearm is discharged.

Gunshotresidue (GSR) is a speck of vital trace evidence that assists forensic scientists in solving a wide range of firearm-related incidents.

The identification of the shooter, as well as bullet identification from a gunshot wound, aid in the reconstruction of a crime scene.

Powderresidues are one thing that can link a suspect to a gunshot.

Thus, the correct option is D.

For more details regarding gun powder, visit:

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What is the charge on a fluorine ion? explain answer plz

Answers

-1

An ion is an atom which has gained or lost electrons.
Atoms want to have full outer shells of electrons.
Electrons are negative.
Fluorine has 7 electrons in its outer shell. When it gains one to fill its shell it will be made negative.
Thus the charge of a fluorine ion is -1

Ozone is dangerous to human health only when it is found in the what?

Answers

Only when it is found in the atmosphere, because it will create a hole, letting strong UV rays shine down on earth, heating it up, and causing skin cancer in humans and other animals.

Answer:

A) Stratosphere

B) trosphere

C)mesosphere

D)thermosphere

Explanation:

D) thermosphere

The atoms in a sample are close together but can slide past one another. As the atoms lose energy, they move slower. The atoms become locked in place because of attractive forces between them.Which change of state is taking place?

gas to solid
gas to liquid
liquid to solid
solid to liquid

Answers

Answer:

liquid to solid

Explanation:

Answer:

liquid to solid

Explanation:

I got it right in edge

Which type of forecasting is impacted the most by the butterfly effect

Answers

Answer:storms high winds and water pools

Explanation:

Answer: long-range forecasts.

A drop of vinegar ( a weak acid ) is placed on a sample of each of the materials below. Which will show the most active reaction? A. glass
B. marble
C. copper
D. steel

Answers

Answer: Option (B) is the correct answer.

Explanation:

Marble is also known as calcium carbonate and its chemical formula is $CaCO_(3)$ .

When it combines with vinegar then it results in the formation of calcium acetate which is a water soluble compound along with the release of carbon dioxide which occurs in the form of bubbles and water.

The reaction is as follows.

$CaCO_(3) + CH_(3)COOH \rightarrow Ca(CH_(3)COOH)_(2) + H_(2)O + CO_(2)$