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Label each of the following ions as cations or anions a. Sodium: b. Chloride: c.

ID: 971946 • Letter: L

Question

Label each of the following ions as cations or anions a. Sodium: b. Chloride: c. Sulfate ion: d. Ammonium ion: e. Magnesium ion: f. Nitrate ion: g. Phosphate ion: 2. Label each of the following solutions as either an electrolyte/ionic solution or non-electrolyte solution. a. Barium chloride solution: b. Hexanol (alcohol) solution: c. Iron(II) oxide solution: d. Aluminum chloride solution: e. Acetic acid (vinegar): 3. Name the following compounds: a. KNO_3: b. BaSO_4: c. Ca_3(PO_4)_2: d. Mg(OH)_2: e. LiCl: f. NH_4Br: 4. Circle the ions that are responsible for producing hard water: a. Barium b. sodium c. Lithium d. calcium e. lead f. magnesium g. carbon h. nitrogen 5. Write the net ionic equation for the reaction of barium chloride reacting with sodium sulfate. 6. When 0.015 grams of sodium sulfate is dissolved in 200 mL of water, what is the concentration of the ions expressed in parts per million (ppm)/

Explanation / Answer

An anion is an ion that has gained one or more electrons, attaining with negative charge. Like when Cl atom gain one 1 e it is converting anion Cl-

A cation is an ion that has lost one or more electrons, attaining with positive charge. Like when Sodium lost one electron and converted into Na+.

Sodium: Na + cation

Chloride Cl- anion

Sulfate ion SO4^2- anion

Ammonium ion NH4 ^+ Cation

Nitrate ion NO3^-1 anion

Phosphate ion PO4^3- Cation.

2. a , BaCl2, is a strong electrolyte

hexanol is a non-electrolyte

Iron (II) oxide solution is a strong electrolyte

AlCl3, is a strong electrolyte

Acetic acid a non-electrolyte

3.

KNO3: Potassium Nitrate

BaSO4: Barium Sulfate

Ca3(PO4)2 Calcium Phosphate

Mg(OH)2 Magnesium hydroxide

LiCl: Lithium chloride

NH4Br Ammonium Bromide

Hard water is a type of water that contains doubly charges cations such asCa2+ and Mg2+ .

Thus the answer is Ca2+ and Mg2+