A4-column table with 3 rows. the first column titled compound has entries a, b, c. the second column titled melting point (degrees c) with entries negative 183, 660, 772. the third column titled boiling point (degrees c) has entries negative 164, 2467, 1600. the fourth column titled conducts electricity has entries no, yes, yes.
which compound is most likely a covalent compound?

Which piece of equipment would me most useful for measuring the volume of some water? a. pan balance b. graduated cylinder c. tweezers d. flask quick

Two nitro no2 groups are chemically bonded to a patch of surface. they can't move to another location on the surface, but they can rotate (see sketch at right). it turns out that the amount of rotational kinetic energy each no2 group can have is required to be a multiple of ε, where =ε×1.010−24 j. in other words, each no2 group could have ε of rotational kinetic energy, or 2ε, or 3ε, and so forth — but it cannot have just any old amount of rotational kinetic energy. suppose the total rotational kinetic energy in this system is initially known to be 32ε. then, some heat is removed from the system, and the total rotational kinetic energy falls to 18ε. calculate the change in entropy. round your answer to 3 significant digits, and be sure it has the correct unit symbol.

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3