What is the name of the cation in each of the following compounds?

#CaO#
#Na_2SO_4#
#KCIO_4#
#Fe(NO_3)_2#
#Cr(OH)_3#

1 Answer
anor277
Sep 26, 2016

#"Calcium, sodium, potassium, iron, and chromium ions."#

Explanation:

The actual cations are #Ca^(2+)#, #Na^+#, #K^+#, #Fe^(2+)#, and #Cr^(3+)#. An ionic material forms when the charges of anion and cations are balanced. All of I have done here is to balance the charges. #ClO_4^-#, #NO_3^-#, and #SO_4^(2-)# are ions you will learn to recognize.

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