1. 55 grams of salt are added to 100 L of water to make a saline solution. What is the g/L concentration of the aqueous solution?
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Which statement describes covalent bases? they have hydroxide ions. they produce hydrogen ions. they are often amines. they are named the same as ionic compounds.

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?