determine the resulting ionic formula and names for the following pairs of cations/anions:
a.) Potassium/Bromine
b.) Iron (II)/Chlorine
c.) Magnesium/Carbonate

Question

determine the resulting ionic formula and names for the following pairs of cations/anions: 
a.) Potassium/Bromine
b.) Iron (II)/Chlorine
c.) Magnesium/Carbonate

paxpolaris · Answer

$$K^+ + Br^- \to KBr$$$$Fe^{2+}+ 2 Cl^- \to FeCl_2$$

anonymous · Answer

so how many cations/anions for the first one?

paxpolaris · Answer

$$Mg^{2+}+{CO_3}^{2-}= MgCO_3$$

paxpolaris · Answer

since Potassium has +1 charge and Bromide has -1 ... they combine in 1:1 ratio

anonymous · Answer

so 1 cation and 1 anion

paxpolaris · Answer

right

anonymous · Answer

so b.) has 2 anions and 1 cation correct.

anonymous · Answer

and c.) (magnesium/carbonate) has 2 cations and 2 anions?

paxpolaris · Answer

c ) 2:2 is the same as 1: 1

anonymous · Answer

so it has 1 anion and 1 cation?

paxpolaris · Answer

right

anonymous · Answer

and what about b?

paxpolaris · Answer

b is correct

anonymous · Answer

so b has 2 anions and 1 cation...just making extra sure haha

paxpolaris · Answer

yes

paxpolaris · Answer

Iron(II) has +2 charge, chloride has -1 ....  so to balance the charges Ferrous Chloride will have twice as many anions to cations

anonymous · Answer

perfect that makes sense...thank you!!