1. dissolve 1 teaspoon of epsom salts in a half cup of water.
2. add 2 teaspoons of ammonia to the epsom salts solution and stir thoroughly. record your observations.
3. allow the mixture to stand for 30 minutes and record your observations.

observations:
appearance after initial mixing
appearance after 30 minutes

analysis/conclusion:
1. balance the equation, if necessary, for the reaction between magnesium sulfate and ammonia. mgso4 + nh4oh → (nh4)2so4 + mg(oh)2
2. classify the reaction between magnesium sulfate and ammonia

Match the vocabulary terms to their definitions. 1 . a long, chain-like set of molecules made up of repeating units joined end to end polymer 2 . a hard, brittle, heat- and corrosion-resistant material made by subjecting a nonmetallic mineral mixture to intense heat ceramic 3 . a plastic with low elongations that cannot be recycled thermoset 4 . a carbon fiber embedded in a polymer resin matrix thermoplastic 5 . a plastic with high elongations that can be recycled crystal 6 . a solid form resulting from the arrangement of atoms, ions, or molecules in definite geometric patterns composite