Hurry answer this pls so i can pass

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.

What effect does a decrease in temperature have on the overall rate of a chemical reaction? a decrease in temperature decreases . the reaction rate will

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa