What is mean by SI unit ?Mention any five physical quantities with their SI units.

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.

Use the periodic table to complete this equation that represents nuclear fission processesun - ba c 3 n

What volume would 2.25 moles of ne has occupy at stp?