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63 Cards in this Set
- Front
- Back
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Why do compounds form |
atoms are ustable, compounds are stable |
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Explain the properties of compounds are differnt from the elements that make them |
Na=Cl=NaCl "make a new" |
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Compounds |
Substances formed by 2 or more elements that are chemically bonded together |
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what kind of compositoin do compounds have |
a fixed compostion |
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Chemical structure |
DEscribes the arrangement of bonded atoms or ions in a substance |
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Chemical fomula |
A set ratio of atoms in a compound |
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What does a chemical formila represent |
The number and type of atoms that make up a compound |
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What is a chemical fomula made up of |
Symbols and numbers |
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Chemical bonds |
an attractive force that holds atoms or ions tother |
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How are chemical bonds formed |
The transfer or sharing of electrons |
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Subscript |
Number of atoms in eachelemnt |
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Coefficent |
number of molecules |
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What do Ions do with their electrons |
they transfer their ions |
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what do colevalent compounds do with their electrons |
the shae them |
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What are ionic compounds found as |
metals ad nonmetals |
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What are covelant compounds found as |
2 or more non metals |
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what s an Ionic Compounds melting point |
high melting point |
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what s an covelant Compounds melting point |
low |
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what s an Ionic Compounds bonds strength |
very high |
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what s an covalent Compounds bonds strength |
very low |
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when do ionic form ons |
when melted or disovled in water |
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how does a covalent compound conduct electrictyq |
not too well |
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How does an Ionic compound conduct electricty
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it will conduct electricty wgen melted or disolved in water
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where do postives go
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on the left
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ionic compound
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metal made up of metal and nonmetal
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binary ionic compound
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ionic madd up of only 2 elements - one is a metal
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what does a binary ionic compound end in
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-ide
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tertiary ion
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a group of civalently bonded atoms that acts as an ion
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what is the difference between a polyamtomic ion that ends in -ite and -ate
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-ate has one more oxygen than -ite(s)
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tertiary ionic
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three or more elements
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oxyanions
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polyatimic atoms that contain oxygen
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Tertiary (polyatomic) |
A group of covalently bonded atoms that acts as an ion |
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Tertiary ionic |
3 or more elements |
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How do you find the Oxidation number in a transition metal |
look at the oxidation number given as a roman numeral |
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Single bond |
shares 2 electrons |
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double bond |
shares 4 electrons |
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how many prefixes are there in covalent bonds |
2 prefixes |
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what is a metalic bond |
two or more metals joined together |
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How are electrons held together in a metalic bond |
they are held together very losely in place and move from atom to atom |
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what are elctrons called in metalic bonds |
delcolized |
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what is an alloy |
a combination of metals |
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what does an alloy allo metals to do |
be more stable |
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What are examples of alloys |
pewter and bronze |
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what is in pewter |
copper and amitomy |
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what is in bronze |
copper and tin |
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What is the fomula for phosophate |
(PO4) |
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what is the charge of phosophate |
3- |
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What is the fomula for Carbonate |
(CO3) |
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What is the charge of carbonate |
2- |
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what is the fomula for sulfate |
(SO4) |
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What is the charge of sulfate |
2- |
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what is the fomula for sulfite |
(SO3) |
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What is the charge of sulfite |
2- |
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What is the formula for nitrite |
(NO2) |
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what is the charge of nitrite |
1- |
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what i the formula of nitrate |
(NO3) |
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what is the charge of nitrate |
1- |
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what is the fomula for Hydroxide |
(OH) |
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what ist the charge of hydroxide |
1- |
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what is the formula for cyanide |
(CN) |
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what is the charge for cyaide |
1- |
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what is the formula for ammonium |
(NH4) |
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what is the charge of amonium |
1+ |
