How Do Things Work on Instagram: "The appearance of gold can be given to copper through two primary methods: alloying to create brass or by gold plating using electrochemistry. These processes create a surface layer that looks like gold, but the base metal remains copper. Alloying (The "Chemistry Trick") A common chemistry demonstration achieves a gold appearance on copper (like a penny) by creating a surface alloy of brass, which is an alloy of copper and zinc and naturally gold-colored. Silver

Everything Explained Lab on Instagram: "The post features a 1:01-second TikTok video demonstrating how a liquid rapidly expands into giant yellow foam, highlighting the chemical reaction that causes fast expansion and volume increase. Originally shared on TikTok by @crazy.factory.skil, the clip explains how controlled mixing and reaction timing create dense, lightweight foam used in industrial and manufacturing applications. The breakdown has already gained over 24.9 million views, attracting st