Aparticle has 3 units of positive charge and 1 unit of negative charge. what is the overall charge of the particles?

In the analysis of hair and fiber samples, which does a compound comparison microscope allow for that a conventional compound microscope does not? a. simultaneous observation b. polarization c. fluorescence d. higher magnification

What type of reaction is zn + cucl2 → cu + zncl2?

Why does a plastic bottle that is sealed at a high altitude change it’s shape when taken to lower altitude