February 4 - Lab 5B

So today we did lab 5b, which had to do with chemical reactions.

The 4 main chemical reactions that were observed in this lab were synthesis, decomposition, single replacement, and double replacement.

The purpose of the lab was to :

1. observe a variety of chemical reactions
2. interpret and explain observations with balanced chemical equations
3. to classify each reaction as one of the four main types

So in this lab, we did seven different experiments, and each one would be classified as a synthesis, decomposition, single replacement, or double replacement reaction.  

Reaction 1: burning a copper wire.

Reaction 2: putting an iron nail in copper (II) sulfate solution.

Reaction 3: heating up copper (II) sulfate pentahydrate in a test tube.

Reaction 4: add water to product of reaction 3.

Reaction 5: combine calcium chloride with sodium carbonate.

Reaction 6: put mossy zinc into hydrochoric acid solution.

Reaction 7: mix hydrogen peroxide solution with manganese (IV) oxide.  Then put glowing splint of wood into mouth of test tube.