1. which best describes the shape of myoglobin, which in many ways is a typical protein? a complex three-dimensional shape formed from many twisted helixes a cylindrical shape that forms from a single twisted helix a straight chain, like beads on a straight piece of string a highly-branched chain, much like the branches of a maple tree

How to convert a density of 0.791g/cm3 to lb/ft3

Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?