US$ 42.00
Laminated 11x17-inch periodic table placemat with the four 2016-named elements (Nh
and blue color changes through sequential oxidation-reduction reactions for chemistry visualization
reading static pH in water
and six drying pins
7 m/s at 0
Ultrasonic Study Kit for Reflection, Interference, and Diffraction Coating_Vinyl Laminated 11x17-inch periodic table placematUltrasonic transmitter, slave transducer, detector, reflective plates, perforated plates, and stand together cover reflection, interference, and diffraction at frequencies above the audible range.
US$ 42.00
US$ 55.00
US$ 99.00
US$ 39.95
US$ 42.95
US$ 25.00
US$ 549.00