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atroni [7]
2 years ago
5

When a gun is recovered from a crime scene never touch the blank with hands or any other object so you don't accidentally discha

rged the weapon
Chemistry
2 answers:
jarptica [38.1K]2 years ago
5 0
Don’t touch the trigger of the firearm
Stolb23 [73]2 years ago
5 0

Answer:

When an investigator processes and reconstructs a crime scene where shots were fired, determining who may have shot the firearm may be critical to the case. The lab may be able to assist with such investigations through the use of gunshot residue (GSR) analysis. GSR is typically expelled from a firearm upon discharge and can land on individuals in close range of the firearm. GSR kits are designed to collect these particles, and the Trace evidence section of the lab has the equipment and expertise to analyze these kits. While GSR testing can provide important information for your case, there are limitations in what the results indicate in a shooting incident.

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On a periodic table, the columns of elements with similar properties are:.
klemol [59]

Answer:

On a periodic table, the columns of elements with similar properties are called groups

5 0
2 years ago
As a phase change occurs when energy is removed or added to a system, the temperature of the substance stays constant because
Rashid [163]

Answer:

energy is being used to make or break bonds between molecules

Explanation:

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2 years ago
A cooling curve has two flat lines, or plateaus. What does the plateau at the higher temperature represent?
blagie [28]

Answer:

It is in the state of "thermal arrest"

Explanation:

The temperature stays constant during the phase change process . This is because the matter has more internal energy and heat has to be taken away for the solidification process to begin. The energy that is required for a phase change is know as latent heat (which is the energy released or absorbed by a body during a thermodynamic process).

5 0
2 years ago
Read 2 more answers
What should go in the blank?
dem82 [27]

Answer:

³⁸₂₀Ca.

Explanation:

³⁸₁₉K –> __ + ⁰₋₁β

Let ʸₓA represent the unknown.

Thus the equation above can be written as:

³⁸₁₉K –> ʸₓA + ⁰₋₁β

Thus, we can obtain the value of y an x as follow:

38 = y + 0

y = 38

19 = x + (–1)

19 = x – 1

Collect like terms

19 + 1 = x

x = 20

Thus,

ʸₓA => ³⁸₂₀A => ³⁸₂₀Ca

Therefore, the equation is:

³⁸₁₉K –> ³⁸₂₀Ca + ⁰₋₁β

6 0
3 years ago
Which of the following is not a natural
Morgarella [4.7K]

Answer:

cup...................

6 0
3 years ago
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