Iron forms rust, expressed as Fe2O3. Using information from the Periodic Table, what is the mass of one mole of Fe203?
A. 71.85 g
B. 143.70 g
C. 159.70 g
D. 319.40 g

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder

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.

What does the xylem do? stores the glucose captures the sunlight absorbs oxygen into the leaf carries water from the roots to the leaves