complete the table, filling in each box with the proper formula. (formulas with subscripts should be entered as regular text, i.e. h₂o is written as h2o.)
ion br o²- no₃ po₄³- co₃²-
k+ kbr
mg²+
al³+
zn²+
h+
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Question

Accepted Answer

# Explanation:
## Step1: Determine formula for $K^{+}$ and $O^{2 -}$
The charges are $+1$ for $K^{+}$ and $- 2$ for $O^{2 -}$. Using the criss - cross method (swap the magnitudes of the charges as subscripts), the formula is $K_{2}O$.
## Step2: Determine formula for $K^{+}$ and $NO_{3}^{-}$
The charge on $K^{+}$ is $+1$ and on $NO_{3}^{-}$ is $-1$. So the formula is $KNO_{3}$.
## Step3: Determine formula for $K^{+}$ and $PO_{4}^{3 -}$
Charge on $K^{+}$ is $+1$ and on $PO_{4}^{3 -}$ is $-3$. Using criss - cross, formula is $K_{3}PO_{4}$.
## Step4: Determine formula for $K^{+}$ and $CO_{3}^{2 -}$
Charge on $K^{+}$ is $+1$ and on $CO_{3}^{2 -}$ is $-2$. Formula is $K_{2}CO_{3}$.
## Step5: Determine formula for $Mg^{2+}$ and $Br^{-}$
Charge on $Mg^{2+}$ is $+2$ and on $Br^{-}$ is $-1$. Formula is $MgBr_{2}$.
## Step6: Determine formula for $Mg^{2+}$ and $O^{2 -}$
Charge on $Mg^{2+}$ is $+2$ and on $O^{2 -}$ is $-2$. Formula is $MgO$.
## Step7: Determine formula for $Mg^{2+}$ and $NO_{3}^{-}$
Charge on $Mg^{2+}$ is $+2$ and on $NO_{3}^{-}$ is $-1$. Formula is $Mg(NO_{3})_{2}$.
## Step8: Determine formula for $Mg^{2+}$ and $PO_{4}^{3 -}$
Charge on $Mg^{2+}$ is $+2$ and on $PO_{4}^{3 -}$ is $-3$. Using criss - cross ($Mg:PO_{4}=3:2$), formula is $Mg_{3}(PO_{4})_{2}$.
## Step9: Determine formula for $Mg^{2+}$ and $CO_{3}^{2 -}$
Charge on $Mg^{2+}$ is $+2$ and on $CO_{3}^{2 -}$ is $-2$. Formula is $MgCO_{3}$.
## Step10: Determine formula for $Al^{3+}$ and $Br^{-}$
Charge on $Al^{3+}$ is $+3$ and on $Br^{-}$ is $-1$. Formula is $AlBr_{3}$.
## Step11: Determine formula for $Al^{3+}$ and $O^{2 -}$
Charge on $Al^{3+}$ is $+3$ and on $O^{2 -}$ is $-2$. Using criss - cross ($Al:O = 2:3$), formula is $Al_{2}O_{3}$.
## Step12: Determine formula for $Al^{3+}$ and $NO_{3}^{-}$
Charge on $Al^{3+}$ is $+3$ and on $NO_{3}^{-}$ is $-1$. Formula is $Al(NO_{3})_{3}$.
## Step13: Determine formula for $Al^{3+}$ and $PO_{4}^{3 -}$
Charge on $Al^{3+}$ is $+3$ and on $PO_{4}^{3 -}$ is $-3$. Formula is $AlPO_{4}$.
## Step14: Determine formula for $Al^{3+}$ and $CO_{3}^{2 -}$
Charge on $Al^{3+}$ is $+3$ and on $CO_{3}^{2 -}$ is $-2$. Using criss - cross ($Al:CO_{3}=2:3$), formula is $Al_{2}(CO_{3})_{3}$.
## Step15: Determine formula for $Zn^{2+}$ and $Br^{-}$
Charge on $Zn^{2+}$ is $+2$ and on $Br^{-}$ is $-1$. Formula is $ZnBr_{2}$.
## Step16: Determine formula for $Zn^{2+}$ and $O^{2 -}$
Charge on $Zn^{2+}$ is $+2$ and on $O^{2 -}$ is $-2$. Formula is $ZnO$.
## Step17: Determine formula for $Zn^{2+}$ and $NO_{3}^{-}$
Charge on $Zn^{2+}$ is $+2$ and on $NO_{3}^{-}$ is $-1$. Formula is $Zn(NO_{3})_{2}$.
## Step18: Determine formula for $Zn^{2+}$ and $CO_{3}^{2 -}$
Charge on $Zn^{2+}$ is $+2$ and on $CO_{3}^{2 -}$ is $-2$. Formula is $ZnCO_{3}$.
## Step19: Determine formula for $H^{+}$ and $Br^{-}$
Charge on $H^{+}$ is $+1$ and on $Br^{-}$ is $-1$. Formula is $HBr$.
## Step20: Determine formula for $H^{+}$ and $O^{2 -}$
Charge on $H^{+}$ is $+1$ and on $O^{2 -}$ is $-2$. Formula is $H_{2}O$.
## Step21: Determine formula for $H^{+}$ and $NO_{3}^{-}$
Charge on $H^{+}$ is $+1$ and on $NO_{3}^{-}$ is $-1$. Formula is $HNO_{3}$.
## Step22: Determine formula for $H^{+}$ and $PO_{4}^{3 -}$
Charge on $H^{+}$ is $+1$ and on $PO_{4}^{3 -}$ is $-3$. Formula is $H_{3}PO_{4}$.
## Step23: Determine formula for $H^{+}$ and $CO_{3}^{2 -}$
Charge on $H^{+}$ is $+1$ and on $CO_{3}^{2 -}$ is $-2$. Formula is $H_{2}CO_{3}$.

# Answer:
| Ion | $Br^{-}$ | $O^{2 -}$ | $NO_{3}^{-}$ | $PO_{4}^{3 -}$ | $CO_{3}^{2 -}$ |
|---|---|---|---|---|---|
| $K^{+}$ | $KBr$ | $K_{2}O$ | $KNO_{3}$ | $K_{3}PO_{4}$ | $K_{2}CO_{3}$ |
| $Mg^{2+}$ | $MgBr_{2}$ | $MgO$ | $Mg(NO_{3})_{2}$ | $Mg_{3}(PO_{4})_{2}$ | $MgCO_{3}$ |
| $Al^{3+}$ | $AlBr_{3}$ | $Al_{2}O_{3}$ | $Al(NO_{3})_{3}$ | $AlPO_{4}$ | $Al_{2}(CO_{3})_{3}$ |
| $Zn^{2+}$ | $ZnBr_{2}$ | $ZnO$ | $Zn(NO_{3})_{2}$ | $Zn_{3}(PO_{4})_{2}$ | $ZnCO_{3}$ |
| $H^{+}$ | $HBr$ | $H_{2}O$ | $HNO_{3}$ | $H_{3}PO_{4}$ | $H_{2}CO_{3}$ |

Ion	\(Br^{-}\)	\(O^{2 -}\)	\(NO_{3}^{-}\)	\(PO_{4}^{3 -}\)	\(CO_{3}^{2 -}\)
\(Mg^{2+}\)	\(MgBr_{2}\)	\(MgO\)	\(Mg(NO_{3})_{2}\)	\(Mg_{3}(PO_{4})_{2}\)	\(MgCO_{3}\)
\(Al^{3+}\)	\(AlBr_{3}\)	\(Al_{2}O_{3}\)	\(Al(NO_{3})_{3}\)	\(AlPO_{4}\)	\(Al_{2}(CO_{3})_{3}\)
\(Zn^{2+}\)	\(ZnBr_{2}\)	\(ZnO\)	\(Zn(NO_{3})_{2}\)	\(Zn_{3}(PO_{4})_{2}\)	\(ZnCO_{3}\)
\(H^{+}\)	\(HBr\)	\(H_{2}O\)	\(HNO_{3}\)	\(H_{3}PO_{4}\)	\(H_{2}CO_{3}\)

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QUESTION IMAGE

Question

Explanation:

Step1: Determine formula for \(K^{+}\) and \(O^{2 -}\)

Step2: Determine formula for \(K^{+}\) and \(NO_{3}^{-}\)

Step3: Determine formula for \(K^{+}\) and \(PO_{4}^{3 -}\)

Step4: Determine formula for \(K^{+}\) and \(CO_{3}^{2 -}\)

Step5: Determine formula for \(Mg^{2+}\) and \(Br^{-}\)

Step6: Determine formula for \(Mg^{2+}\) and \(O^{2 -}\)

Step7: Determine formula for \(Mg^{2+}\) and \(NO_{3}^{-}\)

Step8: Determine formula for \(Mg^{2+}\) and \(PO_{4}^{3 -}\)

Step9: Determine formula for \(Mg^{2+}\) and \(CO_{3}^{2 -}\)

Step10: Determine formula for \(Al^{3+}\) and \(Br^{-}\)

Step11: Determine formula for \(Al^{3+}\) and \(O^{2 -}\)

Step12: Determine formula for \(Al^{3+}\) and \(NO_{3}^{-}\)

Step13: Determine formula for \(Al^{3+}\) and \(PO_{4}^{3 -}\)

Step14: Determine formula for \(Al^{3+}\) and \(CO_{3}^{2 -}\)

Step15: Determine formula for \(Zn^{2+}\) and \(Br^{-}\)

Step16: Determine formula for \(Zn^{2+}\) and \(O^{2 -}\)

Step17: Determine formula for \(Zn^{2+}\) and \(NO_{3}^{-}\)

Step18: Determine formula for \(Zn^{2+}\) and \(CO_{3}^{2 -}\)

Step19: Determine formula for \(H^{+}\) and \(Br^{-}\)

Step20: Determine formula for \(H^{+}\) and \(O^{2 -}\)

Step21: Determine formula for \(H^{+}\) and \(NO_{3}^{-}\)

Step22: Determine formula for \(H^{+}\) and \(PO_{4}^{3 -}\)

Step2…

Answer: