A girl stands on a bathroom scale. In metric units, the scale indicates that her weight is 42 Newtons. This means the force of gravity is pulling her feet onto the scale with a force of 42

Newtons. With what force does the scale push back up against her feet?

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.

Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change

According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons