Which of the following best displays the four major layers of earth?

How many grams of magnesium metal will react completely with 8.3 liters of 5.5 m hcl? show all of the work needed to solve this problem. mg (s) + 2hcl (aq) → mgcl2 (aq) + h2 (g)

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

Why do cells appear different in distilled water than they do in 10% salt water?