2. How much does a single oxygen-16 atom weigh in grams?

Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.

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?

How can one make a supersaturated solution? (apex)