Zn + CuCl2 → ZnCl2 + Cu How many grams of ZnCl2 will be produced from 7.00 g of Zn and 8.00 g of CuCl2? grams (round to three signific

Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?

Compare and contrast physical changes with chemical changes.

(1.6 × 10-19)(5.0 × 106) = c × 10d identify the missing numbers below to show the result of multiplying the numbers.