Beryllium, be, and chlorine, ci, form a binary ionic compund with a one-to-two ration of beryllium ions to chloride ions. the formula for the compund is
a)be2cl
b)becl
c)becl2
d)be2cl2

What does a particular point on a line of a phase diagram represent? o a. the maximum temperature a substance can exist at without bonds breaking b. the pressure created by the kinetic energy of molecules at a particular temperature c. the melting point or boiling point of a substance at a specific pressure d. the conditions in which temperature and pressure have equal effects on a substance

6what is the importance of water on earth? a) it keeps the top layer of the geosphere cool b) it allows life to exist c) it provides ice at the poles d) it creates earth's blue color from space

What metric units would you use to measure the thickness of a key