Explain the relationship between atoms , the big bang theory and chemical equations

What are fructose and glucose an example of?

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?

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?