Synthesis Reactions!
Synthesis Reactions - Combination Reaction - Multiple reactants combine to form a single product. - A + B → AB - Release energy in the form of heat and light (exothermic)
Examples with elements Sodium + chlorine → Sodium Chloride Carbon + oxygen → Carbon dioxide or carbon monoxide (but not both!) 2Na+Cl2-> 2NaCl CO + O2 → CO2 or CO
Examples with Compounds Calcium oxide + water → calcium hydroxide Sulfur dioxide + oxygen → sulfur trioxide CaO + H2O → Ca(OH)2 2SO2 + O2 → 2SO3
The synthesis of Iron Sulfide Iron and sulfur are heated to form iron (II) sulfide http://www.youtube.com/watch?v=A5H6DVe5FAI Fe + S → FeS Note that the video uses temperature to increase the rate of reaction and spreads it out to increase surface area (also increases the rate of reaction)
Predicting the products Non-metal + oxygen → nonmetallic oxide nitrogen + oxygen → nitrogen dioxide Metal + oxygen → metallic oxide Magnesium + Oxygen → Magnesium oxide
Metal-oxide + water → metallic hydroxide magnesium oxide + water → ? Magnesium hydroxide! Mg+02 → Mg2+(OH)1- Mg(OH)2
Non-metallic oxid + water → acid carbon dioxide + water →
Non-metal + metal → salt
Bonus Nitrogen + Hydrogen → ammonia Ammonia + water → ammonium hydroxide