If there are 1.55 x 1024 molecules of hydrogen peroxide (H2O2), what is the mass of the
sample? ​

explanation: it gains negative electrons, therefore becoming negatively charged. as charge cannot be created, nor destroyed, only transferred, this leaves the wool positive. now that they have opposite charges, the two items attract.

catya your not at all which answer i've seen you do this on another question!

answersilicon (si); oxygen (o);