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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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What is an endothermic reaction?
lubasha [3.4K]

Answer:

C. A reaction that absorbs heat

Explanation:

I do not know Latin, but roughly speaking 'Endo' means inside, and 'thermic' means heat.

4 0
3 years ago
Which molecule contains ten hydrogen atoms
My name is Ann [436]

the answer is hydrocarbons contain 10 hydrogen atoms  :D

7 0
3 years ago
Read 2 more answers
What is the total number of atoms in the formula<br> Ca(ClO3)2?
Contact [7]

Answer:

9 atoms

Explanation:

Ca=1

Cl=2

O=6

add them all

5 0
3 years ago
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What do the subscripts in the formula for ethane represent?
Sedaia [141]

Answer:

the number of carbon and hydrogen atoms present in the molecule of Ethane that is it contains two carbon atoms and six hydrogen atoms

Explanation:

8 0
3 years ago
A mixture of 117.9 g of P and 121.8 g of O, reacts completely to form P4O6 and P4O10. Find the masses of P4O6 and P4O10
Alex17521 [72]

Answer:

Mass of P4O6=103.4

            P4O10=133.48

Explanation:

Balanced reaction is:

8P +8O_{2}  ⇒P_{4} O_{6} +P_{4} O_{10}

Both reactant completely vanishes as equivalent of bot are equal.

Moles of P=\frac{117.9}{31} =3.80

Moles of O_{2} =\frac{117.9}{31} =3.80

No. of moles of formed product are equal and is \frac{1}{8}th of mole of any of reactant.

Thus weight of  P_{4} O_{6} =\frac{3.80}{8}×220 ≈103.41

        weight of  P_{4} O_{10} =\frac{3.80}{8}×284 ≈133.48

4 0
3 years ago
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