Answer:Graphite has a giant covalent structure in which: each carbon atom is joined to three other carbon atoms by covalent bonds.
Answer:
The bond dissociation energy to break 4 bonds in 1 mol of CH is 1644 kJ
Explanation:
Since there are 4 C-H bonds in CH₄, the bond dissociation energy of 1 mol of CH₄ is 4 × bond dissociation energy of one C-H bond.
From the table one mole is C-H bond requires 411 kJ, that is 411 kJ/mol. Therefore, 4 C-H bonds would require 4 × 411 kJ = 1644 kJ
So, the bond dissociation energy to break 4 bonds in 1 mol of CH₄ is 1644 kJ
Answer:
Pd(O2C2H3)2
Explanation:
<u>Percentage composition of elements in the compound:</u>
Pd= 47.40%
O=28.50%
C=21.40%
H= 2.69%
<u>Molar mass of each element</u>
Pd= 106g/mol
O= 16g/mol
C= 12g/mol
H= 1g/mol
Step 1
Find the moles of each element in 100g sample using the formula
no. of moles(n)=mass/molar mass
<u>For Pd:</u> 47.40g/106g/mol
n= 0.447 moles
<u>For O:</u> 28.50/16
n= 1.78 moles
<u>For C:</u> 21.40/12
n= 1.783 moles
<u>For H:</u> 2.69/1
n= 2.69moles
Step 2
Now divide the no. of moles separately by the smallest number of moles. Smallest number of moles is <em>0.447</em>
Pd= 0.447/0.447
= 1
O= 1.78/0.447
= 3.9=4
C= 1.78/0.447
= 3.9=4
H= 2.69/0.447
= 6
Hence empirical formula is PdO4C4H6
The probable molecular formula is 
The element is Am and since you lose e- there must be a postive charge. Am+6 is the symbol
I think it would be B maybe