Wednesday, July 17, 2019
Copper Cycle Lab Essay
PurposeDuring this experiment, we were trying to fit whether pig, after a chain of chemic substance reactions, will revert back to its primary(a) form.ProcedureFirst, I summateed nitric biting with copper in a beaker, which moody into a copper nitrate, a teal final result. Afterwards, I added sodium hydroxide, and my resultant sinister to a dark glooming stem called copper hydroxide. I heated the dissolvent to evaporate the water and I got a brownedish-blackish potent called copper oxide. Once the solid appeared, I poured in sulfuric window glass to it and I got copper sulfate, a grim issue. The final step I took was to add the portion zinc, which glowering the solution from blue to clear, with a brown solid in the bottom of the beaker, copper.ObservationDuring each step, something happened. For instant, for the startle step, when I added the superman to the copper, the copper disappeared and the solution turned from the clear acid disguise to a blue-greenish hue. In the next step, there was another chemical reaction when I added the sodium hydroxide. The whole solution turned blue when I stirred the mixture. When the quantify came to evaporate the solution, the liquids disappeared, leaving behind a wet, brownish solid in the warmheartedness of the beaker. When the solid was hot, it bubbled and popped until it cooled down. When all the liquids evaporated, I scraped transfer the solid and gravel it in a separate beaker. Once I put the sulfuric acid in it, the brown solids (copper oxide) slowly dissolved and turned the acid into blue. After the acid was blue, I added the admixture/grey colored zinc into the solution the solution bubbled and the zinc turned the solution clear. The zinc disappeared and in its place, copper appeared. abridgmentFor each step, there was a chemical reaction, except for the part where we evaporated the water/ melted chemicals. For each step, I was turning the copper into a compound. When an acid was added t o the copper, it turned the element into a compound. When a base was added later, it plainly replaced the acid with the base.ConclusionFor this experiment, I ignore conclude that an element/ consider sack never be destroyed or created. The copper cycle is evidence for the legal philosophy of Conservation of Mass, which states that an element or matter can never be created or destroyed, only changed.
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