In thursday's class we did a lab learning about the reactions that occur when you react using decomposition double & single replacement, and synthesis.
First Reaction: We burned a piece of copper wire over a bunsen burner using crucible tongs to see it change to a molten state.
Second Reaction: We put a nail in copper(II)Sulfate, this reaction was Single Replacement. Later the nail wasn't as glossy and had been coated in a layer of copper.
Third Reaction: We heated copper(II)sulfate.
Fourth Reaction: We added water back into copper(II)sulfate.
Fifth Reaction: We poured Calcium Chloride into a Sodium Carbonate solution. We did this to show DOUBLE REPLACEMENT!
Sixth Reaction: We put Zinc into Hydrochloric Acid.
Seventh Reaction: We got a glowing splint (fancy word for slightly burnt stick). We already had a Manganese Oxide solution that we added to Hydrogen Peroxide. Now with our "glowing splint" we put into the top of the test tube.
In thursday's class we did a lab learning about the reactions that occur when you react using decomposition, double & single replacement, and synthesis...
Last class we reviewed double replacement and how to tell if the reaction actually occurred.
1) Use the table of solubilities, find out if it is aqueous.
2) Find an Anion (Negative) –––––––––––––-> Look at the next column see if it has a Cation.
3) Follow it's presence or absence to find if it is in fact aqueous or a solid.
4) Profit???!?!?!?!?!?
Net Equations
Well if you find that there are aqueous substances on both sides of the equation or on the same side, all you do it cross them out.
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