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Chemical Compounds
Test March 11
24
Science
8th Grade
03/08/2010

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Cards

Term
Lipids
Definition
  • Stores ecess energy
  • fats, oils, steriods, waxes
  • cell membranes are made from these
  • plants store it as oils
  • animals store it as fat
  • cheese, milk, meat are is this group
  • store vitamins in the body
  • choleterol is in this group
  • do not disssolve in water
Term
Proteins
Definition
  • Acts a catalyst
  • made of amino acids
  • hair and spider webs are made of these

 

Term

Nucleic acids

 

Definition
  • Largest molecules made by living organisms
  • DNA & RNA
  • composed of carbon, hydrogen, oxygen, nitrogen, and phosphous
  • stores info for the cell
  • when streched over 6 feet, blue prints of life

 

Term
Carbohydrates
Definition
  • made of one or more simple sugars
  • complex starches such as potatoes
  • energy stored in the form of chemical bonds
  • most abundant molecules
  • biochemical

 

Term
Acids
Definition

  • Produce H30 ions in water
  • Tastes sour
  • Dissolve metals
  • React with bases to form salt and water
  • Turns blue litmus paper to red

Term
Bases
Definition

  • Produce H- (hydroxide) ions in water
  • Tastes bitter, chalky
  • Feels soapy/slippery
  • pH is greater than 7
  • Turns red litmus paper blue

Term

If the acids start with 'H' 2/3 elements waht is the prefix/suffix?

 

Definition

2 elements- hydro prefix; -ic ending

3 elements- no hydro prefix; ate ending becomes -ic ending; ite ending becomes -ous ending

 

Term
Strong Acid
Definition

HNO3 is about 100% dissolved in water

 

Term
Weak Acid
Definition
Are much less than 100% dissolved when in water
Term
Strong Base
Definition
100% dissolved when in water
Term
Weak Base
Definition
less than 100% dissolved in water
Term
Nuetralization
Definition
  • When an equal acid and base add to form salt and water
  • NaOH+HCl --> NaCl+H2O
  • Na=Salt
  • OH=hydroxide (base)
  • H=hydronium (acid)
  • Cl= Cloride
  • NaCl=sodium chloride
  • H2O=water
Term
Salt
Definition
An ionic compound formed from the positve ion of a base and the negative ion of an acid.
Term
Organic Compounds
Definition
  • Covelant Compounds composed of carbon-based molecules.
  • made of of carbon atoms
  • Organic Compounds made by living thigs are called biochemicals
Term
Carbon atoms
Definition
  • have 4 valence electrons
  • 4 bonding sites

 

Term
Biochemicals
Definition
  • Organic compounds made by living things
  • very large
  • carbohydrates
  • proteins
  • lipids nucleic acids
Term
Inorganic Compounds
Definition
  • Organic Compounds made without a carbon-based structure
Term
Hydrocarbons
Definition
  • Organic compounds made of only carbon and hydrogen
  • gasoline, mthane, propane
  • saturated, unsaturated, aromatic
Term
Saturated Hydrocarbon
Definition
  • A hydrocarbon in which each carbon atom in a molecule shares a single bond with 4 other atoms
  • other name is alkane
  • propane in a camping stove
Term
Single Bond
Definition
  • is a covelant bond that consists of one pair of shared electrons
Term
Unsaturated Hydrocarbon
Definition
  • Hydrocarbon in which at least 2 carbon atoms share a double or a triple bond
  •  other name is alkene
  • ethene in a minor's hat
Term
Double Bond
Definition
  • is a covelant bond that consists of 2 pairs of shared electrons
Term
Aromatic Hydrocarbons
Definition
  • based off benzene
  • has strong odirs
  • used in air fresheners
Term
Benzene
Definition
  • has a ring of 6 carbons with alternating double and single bonds.
  • medicine
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