A rock like material appears to be one color-at a distance- but, upon careful examination, it has many different colors. It should be classified as... Question 2 options:

pure substance

mechanical mixture

solution

element

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.

An alloy contains 66 g of pure zinc. what is the percentage of zinc in the alloy? express your answer to two significant figures and include the appropriate units.

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