Identify the labeled structures. A:

B:

C:

D:

E:

cell membrane

Golgi body

mitochondrion

nucleus

vacuole

Which of the following statements is not true? • a. covalent compounds have low melting and boiling points. • ob. covalent bonds between atoms of a compound are relatively weak compared to bonds between molecules. • c. covalent bonds occur between nonmetals. • d. covalent compounds are often gases or liquids.

Apump contains 0.5 l of air at 203 kpa.you draw back on the piston of the pump, expanding the volume until the pressure reads 50.8 kpa. what is the new volume of the air pump

Which element is the least metallic between cadmium, silver, zinc, or iron?