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Krypton Difluoride
-- Kr F2
-- molar mass is 121.795 g x mol^-1
-- solid
-- density is 3.24 g cm^-3
-- volatile
-- colorless
-- first krypton compound discovered
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Zirconium Dioxide
-- Zr O2
-- molar mass is 123.218 g/mol
-- density is 5.68 g/cm^3
-- melting point is 2988 K
-- boiling point is 4570 K
-- soluble in HF
-- chemically unreactive
-- white color
-- main use is making hard ceramics
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Niobium Pentoxide
-- Nb2 O5
-- molar mass is 265.81
-- density is 4.6 g/cm^3
-- melting point is 1785 K
-- inorganic
-- solid
-- colorless
-- insoluble
-- mostly unreactive
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Ionic Compounds
-- made of one or more cations paired with one or more anions
-- usually the cations are metals and the anions are nonmetals
-- metals tend to lose electrons
-- nonmetals tend to gain electrons
-- when a metal and nonmetal combine, one or more electrons transfer from the metal to the nonmetal
-- this creates positive and negative ions that are attracted to each other
-- we can assume a compound made of a metal and a nonmetal is ionic
-- basic unit is the formula unit -- smallest electrically neutral collection of ions -- do not exist as discrete entities but part of a larger three-dimensional array
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Disulfur Dichloride
-- S2 Cl2
-- liquid -- oily -- yellowish-red
-- pungent odor
-- molar mass is 135.04 g/mol
-- density is 1.688 g/cm^3
-- melting point is 193 K
-- boiling point is 410.2 K
-- decomposes in water, losing HCl
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Patreon | Ko-fi