The density of ethanol is 0.789 g/mL at 20° C.
What is the mass of 80.0 mL of ethanol at 20°C?

Select each correct answer. more than one answer may be correct. which of the following is a characteristic of unicellular organisms? they can possess tissues and organs. all of their functions are performed by a single cell. they are usually microscopic. each of their cells is specialized to perform a specific function.

Chen drew a diagram to compare the ways in which different organisms obtain nitrogen. which label belongs to the area marked z?

Identify the electromagnets with poles that are reversed from the electromagnet shown above