In a Daniell cell with a zinc anode, the positive charge that builds up in the zinc half-cell compartment is neutralized by:

Why are people not able to scuba dive in the deep part of the ocean

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?

If you burn 10 kilograms of wood in a fire (combustion) what is the weight of the products after the fire has finished burning the wood?