A decrease in population which means animals and plants.
Answer:
B. How many of each atom are present in the compound
D. the simplified ratio of atoms in relation to each other
Explanation:
In a chemical formula, chemical elements or atoms are represented by a chemical symbol for example Fe for iron and Na for sodium, and the number of each atom is represented by a subscript such as CO2, where 2 is a subscript representing 2 atoms of oxygen.
A subscript represents the number of each atom in the compound and the simplified ratio of atoms in relation to each other. The simplified ratio of atoms in relation to each other means subscript shows the contribution of both the atoms in the compound, for example: N2 + 3H2 => 2NH3, it means the subscript showing the ratio or proportionate of atoms that is 2:2 for both nitrogen and hydrogen.
The subscript is always written below and to the right of the chemical symbol.
Hence, the correct answer is "B. How many of each atom are present in the compound and D. the simplified ratio of atoms in relation to each other"
Copper oxide
element x is oxygen location,group 16
Density = mass divided by volume
Density = 8.2 divided by 24.5
Density = 0.33g/cm3
Answer:
This is the cycle of processes by which water circulates between the earth's ocean, atmosphere and land involving precipitation as rain and snow , drainage in streams and rivers, and return to the atmosphere by evaporation or transpiration.... hope it helps....
Explanation:
brainliest please....... thanks!!!......
