Maria and Sharna were analyzing the data from their lab report. Maria had calcuated the mass of an aluminum block to be 31.80g. Sharna reported that the true mass must fall in the range of 31.800g and 31.801g. Did Sharna do it correctly?

What is the number of atoms in 3.54 mol s

Choose all the answers that apply. as ocean depth increases, temperature decreases temperature increases pressure increases pressure decreases salinity increases density increases

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?