The earth's layers are structured so a) the denser materials are towards the center
and less dense are towards the surface.
b) the denser layers are towards the surface and
the less dense are towards the center.
C) there is an equal composition of density layers
throughout

Graded assignment lab report answer the questions below. which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.