Which of the following is not a property of an acid?

reacts with metals
bitter taste
reacts with carbonate
turns litmus paper red

Which traits do human embryos have that link them to a common ancestor with fish and reptiles? a. scales and tail b. gill slits and scales c. tail and gill slits d. hair and tail

If a reactant was removed, did the new equilibrium system shift to make more reactants or more products?

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.