How many moles of water are needed to produce 56.8 g C2H2?

Imagine that you have produced several versions of lactase, each of which differs from normal lactase by a single amino acid. describe a test that could indirectly determine which of the versions significantly alters the three-dimensional shape of the lactase protein.

Arollercoaster car at the top of a hill has potential energy kinetic energy chemical energy light energy

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.