Please answer this
The first reaction bubbled because a was formed.
gas
liquid
solid
2.
The yellow color seen in the second reaction was due to the presence of a solid known as a .
substrate
precipitate
3.
Changes in color and temperature indicate that a reaction has taken place.
chemical
physical

rising temperatures because when water vapor in the air is cooled, it condenses. it turns back into a liquid and attaches to dust particles in the air. these very small water droplets group together to form clouds

bradykinin is a physiologically and pharmacologically active peptide of the kinin group of proteins, consisting of nine amino acids.