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3 years ago

Which famous case was solved by the identification of a discolored tooth?

Chemistry

2 answers:

Alex_Xolod [135]3 years ago

8 0

I think it is Buck Ruxton

mojhsa [17]3 years ago

7 0

Answer:

The correct answer is option B, Lollia Paulina

Explanation:

The dental impression have been used as a mode of solving criminal cases since Roman times. It was in the first century that emperor Claudius order to kill his mistress Lollia Paulina. She was beheaded. The emperor ordered to first kill the mistress and then check her teeth to ensure the right woman was killed. Claudius knew that lollia had discolored front tooth and thus the dead body was easily identified on the basis of tooth.

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Which word means a process in which some substances change into different substances?

Colt1911 [192]

That is Chemical reaction

7 0

4 years ago

system of equations You and your friend are making 30 liters of sodium water. You have liters of 10% sodium and your friend has

vovikov84 [41]

Answer:

X liters of 10% + (30 - x) liters of 22% = 30...

7 0

3 years ago

How to do part (b)??

laila [671]

it has less tightly bound electrons, is able to lose electron easily as compare to metal B at it has 4 unpaired electron in 3d sub-shell.

3 0

3 years ago

Ibuprofen is a drug used to manage mild pain, fever, and inflammation. It is a chiral drug, and only the S enantiomer, whose spe

madam [21]

Answer:

Specific Rotation = 105º

S% in mixture = 92%

Explanation:

Specific rotation in organic compounds varies linearly, then the enantiomeric excess can be express as:

$e.e. = \frac{\alpha }{\alpha pure}$

Where alpha is the specific rotation of the mixture and alpha pure is the specific rotation of the excess enantiomer.

Then, knowing that the S enantiomer is in excess you can calculate the specific rotation of that mixture:

$84=\frac{\alpha }{125.0}*100$

$\alpha =105 Degrees$

For calculating the percentage of S you should remember that the enantiometric excess is the percentage of excess of a certain enantiomer, for example in this case:

$84 = S-R$

Since S is in Excess

Also, it is true:

$100=S+R$

Then you can solve the system of linear equations, finding:

$8=R\\92=S$

Hope it helps!

4 0

3 years ago

A burner on a stove produces temperature. thermal energy. hotness. fire energy.

Aleksandr [31]

Question:

The options are;

a. Temperature

b. Thermal Energy

c. Hotness

d. Fire Energy

Answer:

The correct option is;

b. Thermal energy

Explanation:

A burner on a stove produces thermal energy which is used to raise the temperature of the metal container (kettle, pot or pans) in which items are placed for heating.

Thermal energy is the internal energy of the system given off as heat which when transferred from one body to another causes the temperature of the receiving body to rise. Thermal energy in a burner is given off when the gaseous fuel reacts or burns in the presence of or with oxygen to produce carbon dioxide and water vapor in an exothermic reaction.

4C + 5H₂ + 13/2O₂ (-125 kJ) → C₄H₁₀ + O₂ → CO₂ + H₂O (-2877 kJ).

4 0

4 years ago

Read 2 more answers