Answer:
The highest biogenic silica accumulation rates in this area are observed in the South Atlantic, with values as large as 53 cm. kyr−1 during the last 18,000 yr. Further, extensive biogenic silica accumulation has been recorded in the deep-sea sediments of the Bering Sea, Sea of Okhotsk, and Subarctic North Pacific.
Explanation:
Physical because it’s compound doesn’t change
We are given with the percentage composition of oxygen in an oxide from phosphorus and oxygen equal to 43.6 percent. that is the phosphorus is equal to 56.4 percent. we divide each with the molar mass and divide each with the smaller quantity. P then is equal to 1 and O is equal to 1.5. In this case, the empirical formula is P2O3.
A molecular formula tells us the atoms involved in bond, what kind of atoms are involved and the ordinality of the atoms. This tells the number of atoms found in the molecule. This can be used to derive the stoichiometric ratios of different atoms. The answer to this problem is a. True.
Element Symbol Mass Percent
Sodium Na 27.367%
