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5.2 SALTS. What are salts ?. Salts are a class of ionic compounds that can be produced when an acid and a base react. H A + B OH BA + H 2 O. acid + base salt + water. A salt is made up of a positive ion from a base and a negative ion from an acid.
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What are salts? Salts are a class of ionic compounds that can be produced when an acid and a base react HA + BOH BA + H2O acid + base salt + water
A salt is made up of a positive ion from a base and a negative ionfrom an acid. HA + BOH BA + H2O acid + base salt + water HCl + KOH KCl + H2O
A salt is made up of a positive ion from a base and a negative ionfrom an acid. HA + BOH BA + H2O acid + base salt + water Acid – Base Neutralization
Acid – Base Neutralization HA + BOH BA + HOH HA + BOH BA + H2O
Acid – Base Neutralization Read page 234 – 236 and do:
Acid – Base Neutralization page 91 WORKBOOK
salt acid acid acid base salt acid salt base salt acid acid acid acid acid base salt acid base base base salt
Metal Oxides Metals react with oxygen to form metaloxides MetalOxides Na2O K2O CaO MgO
Non - Metal Oxides Non - Metalsreact with oxygen to form nonmetaloxides Non - MetalOxides CO2 SO2 NO CO
Metal Oxides React with Water when a metaloxide dissolve in water... MO(s) + H2O(l) … MO(s) + HOH(l) MOH(aq) Na2O(s) + H2O(l) 2NaOH(aq) • metaloxide + water base
Metal Oxides React with Water when a metaloxide dissolve in water... MO(s) + H2O(l) … MO(s) + HOH(l) MOH(aq) Na2O(s) + H2O(l) 2NaOH(aq) The solution is BASIC
Non - Metal Oxides React with Water when a non - metaloxide dissolve in water... NO(s) + H2O(l) … • non - metaloxide + water acid SO2(s) + H2O(l) 2H2SO3(aq) The solution is ACIDIC
Metal Oxides and Non – Metal Oxides Read page 237 and do:
Metal Oxides and Non – Metal Oxides page 93 WORKBOOK • metaloxide + water base • non - metaloxide + water acid
metaloxide + water base • non - metaloxide + water acid
metaloxide + water base • non - metaloxide + water acid
metaloxide + water base acid • non - metaloxide + water acid base base acid
Metals and Acids Metals of Groups 1 and 2 (Alkali Metals and Alkaline Earth Metals)
Metals and Acids Metals of Groups 1 and 2 (Alkali Metals and Alkaline Earth Metals) react vigorously with water and acids • Other metals are not that reactive with acids
Metals and Acids When a metal reacts with an acid, a salt and usually hydrogen gasis produced HA+M MA +H2 acid +metal salt +hydrogen
Metals and Acids When a metal reacts with an acid, a salt and usually hydrogen gasis produced HA+M MA +H2 HCl(aq) +Mg(s) MgCl2(aq)+H2(g)
Metals and Acids Read page 238 and do:
Carbonates and Acids CO32- Metal Carbonates CaCO3 MgCO3 • Na2CO3 • K2CO3
Carbonates and Acids CO32- • Carbonate rocks react with acids to produce... • metal carbonate+acid salt + water+carbon dioxide
Carbonates and Acids CO32- • Carbonate rocks react with acids to produce... • CaCO3+H2SO4CaSO4+ H2O +CO2
5.2 Check Your Understanding page 93 TEXTBOOK
5.2 SALTS QUIZ • Date: Wednesday, Dec 18