a. Elemental percent composition is the mass percent of each element in the compound.
The formula for mass elemental percent composition =
(1)
The molecular formula of cisplatin is
.
The atomic weight of the elements in cisplatin is:
Platinum, 
Nitrogen, 
Hydrogen, 
Chlorine, 
The molar mass of
=
= 
The mass of each element calculated using formula (1):
- Platinum,
%
%.
- Nitrogen,
%
%
- Hydrogen,
%
%
- Chlorine,
%
%
b. The given reaction of cisplatin is:

According to the balanced reaction, 1 mole of
gives 1 mole of
.
Now, calculating the number of moles of
in 100.0 g.
Number of moles = 
Molar mass of
= 
Number of moles of
=
.
Since, 1 mole of
gives 1 mole of
. Therefore, mass of cisplatin is:

For mass of
:
Molar mass of
= 
Since, 1 mole of
gives 2 mole of
. Therefore, mass of
is:

Complete question:
Write the condensed formula from left to right, starting with (CH3)x where x is a number.
See attached image for the structure formula of the compound
Answer:
(CH₃)₂CHC(CH₃)₃ named as 2,2,3-Trimethylbutane
Explanation:
If we number the longest chain of the carbon starting from the left, we will observe that there are four carbons in the straight chain as shown in the image.
Starting from first carbon from the left of the carbon chain, at carbon number number 2, there two alkyl group, that is two methyl (CH3 is two). Also at carbon number 3, there are three alkyl group, that is three methyl (CH3 is three).
The condensed formula will be written as;
(CH₃)₂CHC(CH₃)₃
This compound is named as 2,2,3-Trimethylbutane, an isomer of Heptane
I believe this answer is A. Moving electrons generate magnetic forces. Hope this helps!!! :)
So what am I suppose to answer here?