Homogeneous:
denoting a process involving substances in the same phase (solid, liquid, or gaseous).
Herogeneous:
of or denoting a process involving substances in different phases (solid, liquid, or gaseous).
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Answer:
The answer to your question is below.
Explanation:
Hydrogen is located in group IA of the periodic table, then its valence number is 1.
Carbon is located in group IVA, then it has 4 valence electrons.
I believe this is a triple bond with Nitrogen
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The answer is:
There are 0.209 moles of Cu in 13.g of Cu
Why?
To calculate how many moles does a sample of any element has, we need to use its atomic mass
We are working with Copper (Cu), so we need to find its atomic mass to calculate how many moles does 13.3 g of Cu contains.
So, calculating we have:

We have that there is 1 mol per 63.54 grams of Cu.
Now, converting we have:

We have that there are 0.209 moles of Cu in 13.g of Cu
Have a nice day!