Which molecule is an alkene?

a. 2-methylhexane
b. 3-octyne
c. octane
d. cis-2-pentene

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.

Each pair of clay balls represents to planetesimals if each plane test molluscum pound of the same material and is separated by the same distance which pair experiences the greatest gravitational attraction

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion