A copper rod takes up 75 mL of space. With a density of 8.96 g/mL, what is the mass of the rod
1 answer:
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Answer:
Aluminum
Explanation:
Given
<em>See attachment for chart</em>
Required
Identify the unknown substance
To do this, we simply calculate the specific heat capacity from the given parameters using:
This gives:
So, we have:
From the attached chart, we have:
--- The specific heat capacity of Aluminum
<em>Hence, the unknown substance is Aluminum</em>
Answer:
Explanation:
first write the equilibrium equaion ,
⇄
assuming degree of dissociation =1/10;
and initial concentraion of =c;
At equlibrium ;
concentration of
is very small so
can be neglected
and equation is;
=
composiion ;
Answer:
The final balanced equation is :
Explanation:
Balancing in acidic medium:
First we will determine the oxidation and reduction reaction from the givne reaction :
Oxidation:
Balance the charge by adding 2 electrons on product side:
....[1]
Reduction :
Balance O by adding water on required side:
Now, balance H by adding on the required side:
At last balance the charge by adding electrons on the side where positive charge is more:
..[2]
Adding [1] and [2]:
The final balanced equation is :