Label as Synthesis/Decomposition and Name the product(s) in WORDS ONLY

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Presentation transcript:

Label as Synthesis/Decomposition and Name the product(s) in WORDS ONLY DO NOW Label as Synthesis/Decomposition and Name the product(s) in WORDS ONLY Magnesium carbonate  Strontium + nitrogen  Zinc hydroxide  Lithium oxide  Upper left: Thermite reaction, Fe2O3 + Al => 2Fe +2Al2O3 + HEAT!!! http://en.wikipedia.org/wiki/Thermite Upper right: potassium in water, K + H2O => KOH + H2 + HEAT Bottom right: potassium chlorate and sugar, C12H22O11 + 8KClO3 => 12CO2 + 11H2O + 8KCl + HEAT!!! http://lecturedemos.chem.umass.edu/chemReactions5_5.html Bottom left: magnesium reacting with oxygen, Mg + O2 => MgO

After today you will be able to… Identify a single replacement reaction Predict the products in words for single replacement reactions heat Pt

Element + Compound  Element +Compound Predicting Products Single Replacement: An element and compound react to form a different element and compound Common form: Element + Compound  Element +Compound A + BC  AC + B heat Pt

Predicting Products These reactions do not always occur. You must use the “activity series” sheet “Like will replace like” – metals always replace metals, etc. heat Pt

Examples of single replacements: Activity Series of Metals (and Hydrogen) Listed in order of decreasing activity. lithium potassium barium strontium calcium sodium cesium beryllium magnesium aluminum zinc chromium gallium iron cobalt nickel tin lead hydrogen copper mercury silver A metal in a compound is replaced by a more active metal lithium + zinc acetate  ? Must use the activity series! zinc + lithium acetate (Metal) (Metal) Lithium is more reactive than zinc. heat Pt

Demonstration: Copper is more reactive than silver. Activity Series of Metals (and Hydrogen) Listed in order of decreasing activity. lithium potassium barium strontium calcium sodium cesium beryllium magnesium aluminum zinc chromium gallium iron cobalt nickel tin lead hydrogen copper mercury silver A metal in a compound is replaced by a more active metal Copper + silver nitrate  ? Must use the activity series! silver + copper nitrate (Metal) (Metal) Copper is more reactive than silver. heat __AgNO3 + __Cu --> __Cu(NO3)2 + __Ag Pt

Examples of single replacements: Activity Series of Metals (and Hydrogen) Listed in order of decreasing activity. lithium potassium barium strontium calcium sodium cesium beryllium magnesium aluminum zinc chromium gallium iron cobalt nickel tin lead hydrogen copper mercury silver copper + aluminum sulfate  ? NO REACTION (Metal) (Metal) Copper is lower on activity series and therefore is less reactive than aluminum. heat Pt

Examples of single replacements: Activity Series of Metals (and Hydrogen) Listed in order of decreasing activity. lithium potassium barium strontium calcium sodium cesium beryllium magnesium aluminum zinc chromium gallium iron cobalt nickel tin lead hydrogen copper mercury silver ? lead (II) carbonate + barium barium + lead carbonate (Metal) (Metal) No Roman Numeral necessary! heat Pt

Examples of single replacements: Activity Series of Metals (and Hydrogen) Listed in order of decreasing activity. lithium potassium barium strontium calcium sodium cesium beryllium magnesium aluminum zinc chromium gallium iron cobalt nickel tin lead hydrogen copper mercury silver (2) Hydrogen in water is replaced by a more active metal sodium + water  hydrogen hydroxide sodium hydroxide + hydrogen Tip: Change water into “hydrogen hydroxide.” heat Pt

Examples of single replacements: Activity Series of Metals (and Hydrogen) Listed in order of decreasing activity. lithium potassium barium strontium calcium sodium cesium beryllium magnesium aluminum zinc chromium gallium iron cobalt nickel tin lead hydrogen copper mercury silver (3) Hydrogen in acid is replaced by a more active metal calcium + phosphoric acid  hydrogen phosphate calcium + hydrogen phosphate Tip: Change acid names into their ionic name. heat Pt

Examples of single replacements: (4) A non-metal in a compound is replaced by a more active nonmetal fluorine + magnesium iodide  Activity Series of Non-Metals Listed in order of decreasing activity. fluorine chlorine bromine iodine magnesium + iodine fluoride (Non-metal) (Non-metal) Tip: Watch your endings! Make sure non-metals replace non-metals! heat Pt

Work on your worksheet!!