10 Salinity and Carbon 2

10 Salinity and Carbon 2 - 2 , CaCO 3 , CaSO 4 Cations: K +...

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Ions Ions are stable forms of elements that acquire an electrical charge by gaining or losing electrons Elemental Chlorine (Cl) 17 protons (+), 17 electrons (-) Chloride ion (Cl - ) 17 protons (+), 18 electrons (-) By gaining an electron, chlorine has more electrons than protons and becomes negatively charged. Cl + 1e - = Cl -
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Cl 17 protons e- e- e- e- e- e- e- e- e- e- e- e- e- e- e- e- e- e- _ Cl - Chlorine
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Elements that lose electrons and become positively charged are called cations . Na + , K + , Ca 2+ , Mg 2+ , Cu 2+ , Fe 3+ Elements that gain electrons and become negatively charged are called anions . Cl - , Br - , F - , I - CO 3 2- , SO 4 2- , PO 4 -3 oxoanions
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Salts KCl, NaCl, MgCl
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Unformatted text preview: 2 , CaCO 3 , CaSO 4 Cations: K + , Na + , Mg 2+ , Ca 2+ Anions: Cl-, CO 3-2 , SO 4-2 Salts are formed by combining cations and anions to form solids that have no charge. K + + Cl- = KCl Na + + Cl- = NaCl Conversely, if solid salts are mixed with water they dissolve and the ions go into solution KCl K + + Cl-NaCl Na + + Cl-Water Water solid solution CaCO 3 CaSO 4 Ca +2 and CO 3-2 Ca +2 and SO 4-2 NaCl Cl-Na + Na Cl Cl Cl Cl Dissolution Oceans have enormous amounts of salt (ions) dissolved in the water. Where does it come from?...
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10 Salinity and Carbon 2 - 2 , CaCO 3 , CaSO 4 Cations: K +...

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