Answer:
0.280 kg
Explanation:
m= n × MM
where
m is mass in grams
n is moles &
MM is molecular mass
The molecular mass of copper can be found on the periodic table and is 63.546.
We now have all the required information to perform the calculation
m= 4.41 × 63.546
m= 280.23786
m= 280 g
In order to convert this value to kilograms, divide by 1000
280/ 1000
= 0.280 kg
It would be the top soil. The most dissimilar layer is the uppermost layer.
If electrons are negative, losing an electron makes the ion positive.
Therefore Cu1+ contains 1 unpaired electron.
Answer: In order to melt a network solid, a relatively large amount of heat is needed, sufficient to break the covalent bonds that hold the entire solid together
hope this helps
