The atoms of different elements have different masses. Determine whether the statement is true or false. If false, explain why it is false

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?

Consider the four elements above. which one of these elements will combine with oxygen in a 1: 1 ratio?

Calculate the frequency of a wave in a spring toy. the wave has a speed of 1.1 meters per second and a wavelength of 0.1 meters. *