First, you need to count copper mass in alloy.
Second, you have to make an equation an find x ( the copper mass must be added). The answer is: 13,5g pure copper
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:
Explanation:
The chemical equation of the reaction is as follows
According to the question, data provided in the question is shown below:
The C = Carbon and its standard state is Graphite C(s)
The H = Hydrogen and its standard state is 
(s)
The O = Oxygen and its standard state is 
(s)
Now the chemical equation for the reaction is
Answer:
65 ml
Explanation:
The aluminum will not float , so it will displace a volume of fluid equal to its volume.
13.5 gm / 2.7 gm/ml = 5 ml
the new graduated cylinder measurement will be 60 + 5 = 65 ml
