2. Which statement is TRUE for a chemical change?
er
Identity of the substance is not
changing
O Mass is conserved
The substances always changes
from solid to liquid

How many miles of calcium oxide will be produced when 1.6 miles of iron (iii) oxide react with calcium phosphate

What is the number of atoms in 3.54 mol s

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.