The image shows what happens when an antacid tablet is placed in water. the process shown in the image can best be described as a rapid chemical reaction where gas is released. slow chemical reaction where light is being given off. slow chemical reaction where the liquid changes color. rapid chemical reaction where heat is suddenly released.

Answer is: rapid chemical reaction where gas is released.

This gas is probably carbon carbon(IV) oxide.

Other exampe, chemical reaction:

NaHCO₃ + HCl → NaCl + CO₂ + HCl.

Reaction occurs between sodium bicarbonate (sodium hydrogen carbonate) and hydrochloric acid. For example, hydrogen carbonate mixed with water is used like antacid (neutralizes stomach acidity), contverts stomach acid (hydrochloric acid) to carbon dioxide.

the tides are influenced by both the moon and the sun, it's easy to see that when the sun lines up with the moon and the earth, as during a new moon or full moon, the tidal effect is increased. these are known as spring tides, named not for the season, but for the fact that the water "springs" higher than normal. on the other hand, if the sun and the moon are 90 degrees apart in relation to an observer on earth as during the first quarter moon or third quarter moon, then high tides are not as high as they normally would be. this is because despite its greater distance, the sun's mass allows it to exert enough gravitational force on the oceans that it can negate some of the effects of the moon's pull. this phenomenon of lower high tides is called a neap tide. if you need more information on this topic visit moonconnection.com.

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.