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:

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6

can you list the answers so i can answer