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Related Flashcards
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Cards In This Set
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Atomic number
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Number of protons in the atom
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Atomic mass
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# of protons + # of neutrons
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Protons
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Positive charge
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Neutrons
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No charge
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Electrons
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Negative electrical charge
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Where is the mass of the atom?
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Nucleus
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Covalent bonds & example
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Chemical bond in which atoms share pairs of electronsex. chlorine
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Ionic bonds & example
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Chemical bonds in which 2 or more ions are linked by an opposite chargeex. sodium chloride
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Polar covalent & example
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Electrons shared equally between atoms so that one end of the molecule has a negative charge and the other has a positive charge ex. water
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Hydrogen bond
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Links that already covalently bonded hydrogen atom with an electronegative atom
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Monosacchride
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Combine to form complex carbohyrates
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What is disaccharide?
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2 monosaccharides together
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What are the 3 basic monosacchrides and their corresponding disaccharide's?
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· Glucose +
glucose = maltose
· Glucose +
galactose = lactose
· Glucose +
fructose = sucrose (table sugar )
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What are the four main
categories of complex carbohydrates
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· starch –
a polysaccharide in plants , storage (ex.
Pasta, potatoes, corn )
· glycogen
– a polysaccharide in animals, storage (ex. Protein)
· cellulose
– in plants, structural, has cell walls (ex. The outside skin of celery and
broccoli)
· chitin –
in arthropod animals, structural
(ex. Insects, crabs, spiders)
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The basic structures of a fat (triglyceride).
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-The structure of a fat is glycerol unit + 3 fatty
acid chains
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