Which of the following have the highest net-energy ratio? Select one:
O a.
solar energy
O b. natural gas
O c. petroleum
O d. coal

Write a net ionic equation to show that hydrofluoric acid, behaves as an acid in water.

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?

You open a can of soda at room temperature and hear a hiss. which of the following factors has changed inside the container? a.) atmospheric pressure b.) temperature of gas c.) type of gas d.) amount of gas