Oxygen is denoted as 16o8. how many protons and neutrons does an oxygen atom have?

How many ions that have a +1 charge will bond with an ion that has a -2 charge

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?

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?