A microbiologist hypothesized that
Staphylococcus aureus is more susceptible to
antibiotics than Escherichia coli. She tested her
hypothesis by exposing the two species of
bacteria to three different antibiotics. The closer
the bacteria were able to grow to antibiotic-soaked
disks, the more resistant they were to treatment
by that antibiotic.
Which bacterium would you expect to be more
responsive to antibiotic treatment?
MANE

The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride

Pegmatites are igneous rocks in which the individual minerals are very large. typically, the minerals are all light-colored quartz, feldspar and muscovite. if you were given a black and white photograph of a pegmatite in a quarry (where the rock has been blasted and broken), what physical properties could you use to identify those three minerals in this hypothetical photo? describe each mineral and the specific diagnostic properties. be specific.

What is the indicator of the number of ions in solution? the amount of conductivity the amount of precipitate the amount of solute added