Answer - C. Coal is ionically bonded together while diamonds are covalently bonded together.
Aerobic is oxygen so it would be d
The correct answer is D. Nuclei
During this process, multiple nuclei are created and they all exist at the same time until the cytoplasm separates and starts forming new cells, which is when the nuclei enter these new cells and separate, forming thus new cells.
Given :
560 gram of silicon dioxide.
To Find :
Number of moles of silicon dioxide in 560 gram.
Solution :
We know, molecular mass silicon dioxide is 60 gram/mol.
So, number of moles of silicon dioxide in 560 gram is :

Now, one mole of any compound contain
.
So, number of molecules in 9.33 moles of silicon dioxide is :

Hence, this is the required solution.