If heating up a homogeneous mixture, which combination of equipment is most
appropriate?
a. Evaporating dish and clay triangle
b. Iron ring and condenser
c. Crucible and wire gauze
d. Wire gauze and evaporating dish

What is the oxidation state of each individual carbon atom in c2o42−?

Match the vocabulary terms to their definitions. 1 . a long, chain-like set of molecules made up of repeating units joined end to end polymer 2 . a hard, brittle, heat- and corrosion-resistant material made by subjecting a nonmetallic mineral mixture to intense heat ceramic 3 . a plastic with low elongations that cannot be recycled thermoset 4 . a carbon fiber embedded in a polymer resin matrix thermoplastic 5 . a plastic with high elongations that can be recycled crystal 6 . a solid form resulting from the arrangement of atoms, ions, or molecules in definite geometric patterns composite

Of the following elements, which is the least reactive? a. c b. h c. li d. he