Antacids are used to relieve heartburn and sour stomach. products like these commonly contain substances such as mg(oh)2, al(oh)3, and caco3. what is it about these substances that soothe a burning stomach? (2 points)

They all react with acids.  

Explanation:

Thus, they decrease the concentration of stomach acid and provide heartburn relief.

The equations for the reactions are:

the answer is:  

line graphs show patterns in data with variables that change over time; whereas, circle graphs show data as parts out of a whole (such as out of 100%).

4d^55s^1 ( third choice)