# data[].attributes.body
when the ions in sodium bicarbonate mix with the ones in acetic acid, 2 new chemicals are formed; carbonic acid and sodium acetate. This reaction causes the whole solution to fizz.

# data[].attributes.body
when the tablet is dropped into the water, carbon dioxide is formed and released into the air. the carbon dioxide rising is what makes the solution fizz. the base of the alka seltzer tablets is sodium bicarbonate. which reacts with the hydrogen atoms inside the water, creating the carbon dioxide.

# data[].attributes.body
banana (as well as a lot of fruits) are highly reactive with an airborne hormone called ethylene that helps signal the ripening process. when a banana is exposed to too much ethylene over a period of time, it will start to ripe to the point that it turns brown. the full process of a banana ripening is a chemical change. in the beginning (when the banana is still green) the green chlorophyll pigments are broken down and replaced with new yellow ones. this is all because the acids in the banana are reacting with the ethylene in the air.

# data[].attributes.body
many different metals (especially silver) are reactive with sulfur. when the metals are exposed to the sulfur, they react and start to change color (tarnish). when the silver and sulfur react, they create silver sulfide. when a layer of silver sulfide is created on top of the original silver, a brownish color is formed and the silver is darkened.

# data[].attributes.body
when milk rots, fungus starts growing inside making the solids grow inside. this also makes the milk smell rotten.

# data[].attributes.body
when paper is burned, the products result in the formation carbon monoxide and carbon dioxide. these gasses are the reason that burning paper gives of that odor.

# data[].attributes.body
when a cake is baked, the heat is the reason it form into a fluffy solid. the heat causes the sodium bicarbonate to form bubbles, make the cake fluffy. the eggs in the case solidify in the heat, making it firm.

# data[].attributes.body
when an egg is heated, the proteins bond with each other. the longer the egg is kept in the heat, the more the proteins bond; making the egg more firm.

# data[].attributes.body
when an egg decomposes, gases are produced which causes the egg to to have the "rotten" smell. when the egg rots, hydrogen sulfide is produced and is the reason to why the egg smells.

# data[].attributes.body
the heating ad had ammonium nitrate and a bag of water inside. when you hit the heating pad, the water reacts with the ammonium nitrate creating an endothermic reaction. when the reaction begins, heat is being absorbed from around the pad making it seem cold.