If you were able to magnify a penny down to the atomic level, what two observations could you make about the atoms?

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?

Which element is the least metallic between cadmium, silver, zinc, or iron?

The chemical bond connecting one nucleotide with the next one along the nucleic acid chain is called a