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Basic Chem-pH & H2O

Basic Chemistry - pH, H2O, Atomic Structure, and Bonding

TermDefinitionHint/Example
Adhesion attraction between molecules of different substances water sticking to your skin
Atom the smallest unit of an element that retains all of the properties of that element
Base a substance capable of accepting hydrogen ions (H+); pH > 7 NaOH KOH
Chemical Formula the specific combination of atoms in a substance
Chemical Reaction the rearrangement of atoms to produce new substances
Cohesion attraction between molecules of the same substance "co-" = to the same
Compound a substance made of two or more different elements H2O NaCl
Covalent Bond attraction connecting atoms that share 1 or more electrons H2O CH4
Dissociate the act of water separating positive and negative ions of a substance NaCl separating into Na+ and Cl-
Dissolve the positive and negative poles of water oppositely "sticking to" different positively and negatively charged substances
Element any amount of one type of atom that cannot be broken down by physical or chemical means
Hydrogen Bond weak bond formed between oppositely charged poles of molecules
Insoluble a substance will not dissolve in another substance oil is insoluble in water
Ion a charged substance (positive or negative) Na+ Cl-
Ionic Bond attraction connecting atoms of oppositely charged ions; one atom gives up 1 or more electrons to another atom NaCl
Molecule the covalent bonding of two or more atoms O2 H2O C6H12O6
Nonpolar a molecule in which its atoms share electrons equally CH4 CO2 O2
pH a scale that measures the amount of hydrogen ions (H+) in solution
Polar a molecule in which its atoms share electrons unequally H2O C6H12O6
Property a characteristic of a substance
Salt any ionic substance that is not an acid or a base NaCl KF
Solublity the ability of a substance to dissolve into another substance
Soluble the ability of a substance to dissolve into another substance
Solute a substance that is dissolved in a solvent NaCl in H2O C6H12O6 in H2O
Solution a physical mixture of a solute and solvent salt mixed with water sugar mixed with water
Solvent a substance capable of dissolving another substance water
Neutral a substance that is neither a base nor an acid; pH = 7 H2O NaCl
Acid a substance capable of donating a hydrogen ion (H+) into solution; pH < 7 HCl H2SO4 H2CO3
Created by: mrjaeckels
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