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3 years ago

Describe two other “medicinal” uses for metals.

Chemistry

1 answer:

dedylja [7]3 years ago

3 0

Answer:

Please see "Explanation" for a description of how and why these two metals work in the medical field.

1. Platinum (Pt) is used in chemotherapy.

2. Nickel (Ni) used in medical tools and equipment.

Explanation:

Two chemotherapy agents contain the heavy metal Platinum. Those agents cause crosslinking in DNA, making it impossible for the dividing cancer cell to duplicate it's DNA, eventually leading to the death of that cancer cell. Platinum allows the DNA's bases to magnetically crosslink, and without platinum, there wouldn't be enough magnetic energy to cause this.

Nickel-containing stainless steel is also widely used in manufacturing medical devices, pharmaceuticals and vaccines, where the highest standards of hygiene and sterility are essential.

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The second-order rate constant for the dimerization of a protein (P) P + P → P2 is 6.2 × 10−3/M · s at 25°C. Part 1 out of 2 If

siniylev [52]

Answer:

$r=1.59\times 10^{-10}\ M/s$

Explanation:

According to the law of mass action:-

The rate of the reaction is directly proportional to the active concentration of the reactant which each are raised to the experimentally determined coefficients which are known as orders. The rate is determined by the slowest step in the reaction mechanics.

Order of in the mass action law is the coefficient which is raised to the active concentration of the reactants. It is experimentally determined and can be zero, positive negative or fractional.

The order of the whole reaction is the sum of the order of each reactant which is raised to its power in the rate law.

From the reaction given that:-

$P+P\rightarrown P_2$

The expression for the rate is:-

$r=k[P]^2$

Given that;- k= $6.2\times 10^{-3}$ /Ms

[P] = $1.6\times 10^{-4}$ M

Thus,

$r=6.2\times \:10^{-3}\times \:\left(1.6\times \:\:10^{-4}\right)^2\ M/s=1.59\times 10^{-10}\ M/s$

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3 years ago

Explain how you would calculate the q for warming 100.0 grams of liquid water from 0°C to 100 °C.

mojhsa [17]

Answer:

mass = 100 g

T1 = 0°C

T2 = 100 °C

C = 1 cal/g°C

Q = mC(T2 -T1)

Q = 100(1)(100 - 0)

Q = 100(100)

Q = 10000 cal

Explanation:

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3 years ago

Write the electron configuration for the elements whose atomic numbers are the following:

andreev551 [17]

Answer:

3= Lithium (Li) = [He] 2s1

6= Carbon (C) = [He] 2s2 2p2

8=Oxygen (O)= [He] 2s2 2p4

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2 years ago

Draw all resonance structures for the nitryl fluoride molecule, no2f.

denis-greek [22]

From electronic configuration valence electron of Nitrogen is 5, oxygen 6x2 which 12 since it involve two molecules , that of is frulorine is 7, and that No2F is 24 which is gotten form adding (5,12,7 ).All resonance structure are as follows
F
.. I ..
: O : N :O:

..
OR : F:
I

N .. : F:

/ \ or I

.. .. N

:O :        :O:    / /    \\
    / /    \\
     :O : : O:

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3 years ago

A student practicing for the outdoor track team begins to sweat. To what stimulus is the body responding?

cricket20 [7]

Answer:

A student practicing for the outdoor track team begins to sweat. To what stimulus is the body responding?

Explanation:

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3 years ago

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