Record observations of the reaction and products in the data table.
The brown solid that formed is

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

Avariable that is not being directly tested during an experiment should be changed varied experimented controlled

Which are forms of frozen water? check all that apply. dew frost hail rain sleet