A Floating Tin Sponge | Teaching Chemistry

Reacting zinc metal with tin(II) chloride in acid solution produces a tin "sponge" that bobs and floats before rising to the surface. Presented by Jamie Benigna as part of the Flinn Scientific Teaching Chemistry Video Series, professional development for chemistry teachers. Over 125 additional video products are available at http://elearning.flinnsci.com Be sure to subscribe and check out more videos! ATTENTION: This demonstration is intended for and should only be performed by certified science instructors in a safe laboratory/classroom setting. Subscribe: https://www.youtube.com/channel/Flinn... Facebook:   / flinnscientific   Website: https://www.flinnsci.com/