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Lisa [10]
3 years ago
7

Why is gunshot residue important for a forensic scientist? What are the potential complications with this type of evidence?

Chemistry
1 answer:
sergij07 [2.7K]3 years ago
3 0

Answer:

Gunshot residue is important to forensic scientists because it can help measure the firing distance of a weapon, or if someone has fired a weapon lately based on what's on their hands. The potential complications of this evidence include it being uncertain if the residue is from another firing. This type of evidence can also be uncertain in a courtroom when firing distance is drawn into question.

Explanation:

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If you have two wires made out of the same material and the same thickness, one is 3-inches long and one is 6-inces long, which
Harlamova29_29 [7]

Answer:

6 inces

Explanation:

8 0
3 years ago
A certain large pond had many plants growing in it. It also had a population of fish living in it. One day, a chemical spilled i
DaniilM [7]

Answer:

Hi! your answer would be C. Plants produce oxygen through photosynthesis, and fish depend on this oxygen to survive.

Explanation:

I took the test and got this question right!

6 0
3 years ago
What is the maximum mass of ammonia that can be formed when 36.52 grams of nitrogen gas reacts with 10.62 grams of hydrogen gas
k0ka [10]

The maximum mass of NH₃ that can be formed when 36.52 g of N₂ reacts with 10.62 g of H₂ is 44.35 g

<h3>Balanced equation </h3>

N₂ + 3H₂ —> 2NH₃

Molar mass of N₂ = 14 × 2 = 28 g/mol

Mass of N₂ from the balanced equation = 1 × 28 = 28 g

Molar mass of H₂ = 2 × 1 = 2 g/mol

Mass of H₂ from the balanced equation = 3 × 2 = 6 g

Molar mass of NH₃ = 14 + (3×1) = 17 g/mol

Mass of NH₃ from the balanced equation = 2 × 17 = 34 g

SUMMARY

From the balanced equation above,

28 g of N₂ reacted with 6 g of H₂ to produce 34 g of NH₃

<h3>How to determine the limiting reactant </h3>

From the balanced equation above,

28 g of N₂ reacted with 6 g of H₂

Therefore,

36.52 g of N₂ will react with = (36.52 × 6) / 28 = 7.83 g of H₂

From the above calculation, we can see that only 7.83 g out of 10.62 g of H₂ are required to react completely with 36.52 g of N₂.

Therefore, N₂ is the limiting reactant

<h3>How to determine the maximum mass of NH₃ produced </h3>

From the balanced equation above,

28 g of N₂ reacted to produce 34 g of NH₃

Therefore,

36.52 g of N₂ will react to produce = (36.52 × 34) / 28 = 44.35 g of NH₃

Thus, the maximum mass of NH₃ obtained from the reaction is 44.35 g

Learn more about stoichiometry:

brainly.com/question/14735801

#SPJ1

4 0
2 years ago
What is the wavelength of radiation that has a frequency of 5.9×1011 s−1 ?
Igoryamba

Answer:

frequency = velocity of light /wavelength

wavelength = velocity / frequency

=3 x10^8 / 5.9 x 10^11

=0.508 x 10^-3.

3 0
3 years ago
Which has a higher boiling point hcl or hi
Likurg_2 [28]

HI.

Hope this helps!

-Payshence

3 0
3 years ago
Read 2 more answers
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