What is formed from excess Nitrogen in bodies of water?
100
Electrons are shared in a covalent bond. They are transferred in an ionic.
What happens to the electrons in a covalent? An ionic?
100
Found in the nucleus, -1 charge, 0 amu
Where is the electrons found in an atom? What is the charge and the amu?
200
All four
Atmo.- CO2
Hydro.- H2CO3 (carbonic acid)
Geo.- oil, natural gas, coal
Bio.- DNA, protein, humans
Is Carbon found in all the spheres? And if an example fro each?
200
Respiration
What is the opposite of photosynthesis?
200
By atmospheric, human, bacteria, and cyanobacteria
How is Nitrogen fixed into the ground?
200
Covalent
What bond happens between two nonmetals?
200
Valence electrons
What are the put most electrons called?
300
Photosynthesis
What is the process where plants take in carbon dioxide and water and use solar energy to make glucose (sugar)
300
When decomposers consume oxygen faster than the plants can produce, which then in turns increase the pH level.
What makes pH level change?
300
Fertilizers
What are sources of Nitrates and Nitrites?
300
Both have to do with valence electrons, and try to get to stable outer shells.
What do both ionic and covalent bonds have in common?
300
isotopes
What are atoms of the same element have different mass numbers they are known as of that element.
400
The months because of how much CO2 in being taken in by plants.
What is the reason for on a graph in the period over a year it goes up and down?
400
Temperature
Water clarity
Current velocity
What are the factors that affect D.O. composition?
400
N- turning NH4 to nitrites and nitrates
D- turning NO3 and NO2 to N2
What is Nitrification? Denitrification?
400
Non-molecules
Solids
Good conductors
Soluble in water
What are properties of ionic bonds?
400
number of electrons in the outermost energy level.
The chemical behavior of different elements is determined by the….
500
temperature increases
As carbon dioxide increases in the atmosphere…...
500
1. Excess organic matter enter body of water
2. Decomposer population grows rapidly as food source increases
3. Decomposers use up large amts. of oxygen in water to break down organic matter
4. D.O. levels fall and can lead to fish kills and dead zones
What is the sequence of events the cause dead zones?