Scelta multipla
Which of the following is the correct chemical formula for iron(III) sulfide?
124
views
3. Chemical Reactions
Naming Ionic Compounds
Scelta multipla
Which of the following anions would bond with K^+ in a 1:1 ratio to form a neutral ionic compound?
A
PO_4^{3-}
B
SO_4^{2-}
C
Cl^-
D
O^{2-}
Guida verificata passo dopo passo1
Identify the charge on the potassium ion, K^+, which is +1.
Examine each anion's charge to determine the ratio needed to balance the positive charge of K^+ to form a neutral compound:
For PO_4^{3-}, the phosphate ion has a charge of -3, so 3 K^+ ions would be needed to balance one PO_4^{3-} ion, resulting in a 3:1 ratio, not 1:1.
For SO_4^{2-}, the sulfate ion has a charge of -2, so 2 K^+ ions would be needed to balance one SO_4^{2-} ion, resulting in a 2:1 ratio, not 1:1.
For Cl^-, the chloride ion has a charge of -1, which balances exactly with one K^+ ion, giving a 1:1 ratio and forming a neutral ionic compound.
Video correlati
Pratica correlata
