An aqueous solution of a cation (represented as blue spheres in the diagram) is allowed to mix with a solution of an anion (represented as green spheres) and the following result is obtained:
Which combinations of cation and anion, chosen from the following lists, are compatible with the observed results? Explain.
Cations: \(\mathrm{Na}^{+}, \mathrm{Ca}^{2+}, \mathrm{Ag}^{+}, \mathrm{Ni}^{2+}\)
Anions: \(\mathrm{Cl}^{-}, \mathrm{CO}_{3}^{2-}, \mathrm{CrO}_{4}^{2-}, \mathrm{NO}_{3}^{-}\)
Text Transcription:
Na^2, Ca^2+, Ag+, Ni^2+
CO^-, CO_3^2-, CrO_4^2-, NO_3^-
A- 3 i. Aluminum- Al ii. Argon-Ar iii. Arsenic- As B- 4 i. Barium- Ba ii. Beryllium- Be iii. Boron- B iv. Bromine- Br C- 7 i. Calcium- Ca ii. Carbon- C iii. Cesium- Cs iv. Chlorine- Cl v. Chromium- Cr vi. Cobalt- Co vii. Copper- Cu D- 0 E- 0 F- 2 i. Fluorine- F ii. Francium- Fr G- 3 i. Galium- Ga ii. Germanium- Ge iii. Gold- Au H- 2 i. Helium- He ii. Hydrogen- H I- 2 i. Iodine- I ii. Iron- Fe J- 0 K- 1 i. Krypton- Kr L- 2 i. Lead- Pb ii. Lithium- Li M- 3 i. Magnesium- Mg ii. Manganese- Mn iii. Mercury- Hg N- 3 i. Neon- Ne ii. Nickle- Ni iii. Nitrogen- N O- 1 i. Oxygen- O P- 2 i. Phosphorus- P ii. Potassium- K Q- 0 R- 2 i. Radium- Ra ii. Rubidium- Rb S- 7 i. Scandium- Sc ii. Selenium- Se iii. Silicon- Si iv. Silver- Ag v. Sodium- Na vi. Sulfur- S vii. Strontium- Sr T- 2 i. Tin- Sn ii. Titanium- Ti U- 0 V- 1 i. Vanadium- V W- 0 X- 0 Y- 0 Z- 1 i. Zinc- Zn
