Which part of the crust is the thickest

Balance this equation co2(g) + h2o (g) show that the balanced equation obeys the law if conversation of mass

When you mate two plants together the terms is called? answer it fast as possible plz! i have a test tomorrow!

Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?