Substances that contain two or more different elements in a fixed proportion correct answers Compounds
Group of atoms held together by chemical bonds correct answers Molecule
Nuclei that contain the same number of protons but different number of neutrons correct answers Isotopes
Zone in th...
substances that contain two or more different elem
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Substances that contain two or more different elements in a fixed proportion correct answers
Compounds
Group of atoms held together by chemical bonds correct answers Molecule
Nuclei that contain the same number of protons but different number of neutrons correct answers
Isotopes
Zone in the ocean where temperature decreased rapidly with depth correct answers Thermocline
Enhanced by dissolved inorganic carbon species correct answers Ocean's buffering capacity
The constant proportion of solids in seawater correct answers Forchammer's Principle
Connects atoms by sharing the energy of paired electrons correct answers Covalent bond
Electrically asymmetrical molecule like water with positive and negative ends, polar nature of
water due to angular shape of molecule correct answers Polar
Bonds water molecules together (weak bond) correct answers Hydrogen bond
Allows water molecules to stick to one another - hydrogen bonding correct answers Cohesion
The tendency of water to stick to other materials - hydrogen bonding correct answers Adhesion
The most abundant constituent of a solution correct answers Solvent
The less abundant constituent of a solution, dissolved solid or gas correct answers Solute
An atom with an unbalanced electrical charge correct answers Ion
Almost completely absorbed within the first few meters of the ocean's surface (biologically
important) correct answers Red light waves
Electrostatic attraction that exists between ions of opposite charge (NaCl) correct answers Ionic
bonds
Total concentration of dissolved inorganic solids in water correct answers Salinity
A measure of the total mass of halogen ions in seawater correct answers Chlorinity
Properties of solutions (water plus salts) correct answers Colligative properties
Elements present in amounts less than 1ppm (0.001%) correct answers Trace elements
, Percentage of various salts in seawater is the same in samples from many locations, regardless of
how salty the water is correct answers Principle of constant proportions
The proportion and amounts of dissolved salts per unit volume of ocean are nearly constant
correct answers Chemical equilibrium
The average length of time an element or atom spends in the ocean correct answers Residence
time
The time necessary to mix a substance through the ocean, about 1,600 years correct answers
Mixing time
Dissolve more amounts of gases compared to tropics and temperature water masses correct
answers Polar water masses
Seawater constituents that occur in constant proportion or change very slowly through time, long
residence times correct answers Conservative constituents
Seawater constituents that are tied to biological or seasonal cycles or short geological cycles.
They have short residence times correct answers Nonconservative constituents
A substance that releases a hydrogen ion in solution correct answers Acid
A substance that combines with a hydrogen ion in solution, alkaline solution correct answers
Base
Measures the concentration of hydrogen ions in a solution correct answers PH scale
Prevents broad swings of pH when acids or bases are added - carbonate buffer system in
seawater correct answers Buffer
Components of an atom correct answers Nucleus, Electron cloud, Atomic number, Neutron
number, Mass number, Stable and radioactive isotopes
Electron number = correct answers proton number
Atomic number = correct answers Z (protons)
Neutron number = correct answers N (neutrons)
Mass number = correct answers A (protons + neutrons)
French chemist credited with the "discovery" of water in 1783 correct answers Lavoisier -
discovered that water could be subdivided into 2 gases
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