Nails are being submerged in solutions. Use the following terms to describe the

ID: 998780 • Letter: N

Question

Nails are being submerged in solutions. Use the following terms to describe the solutions (excluding water) that will be used in Parts A.1, A.2 and A.3 as acids, bases, salt, oxidizing agents, reducing agents.

Part A.1

Part A.2

Part A.3

Sodium hydroxide, NaOH

Potassium hydroxide, KOH

Sodium phosphate, tribasic, Na3PO4

Sodium chloride, NaCl

Sodium carbonate, Na2CO3

Sodium oxalate, Na2C2O4

Hydrochloric acid, HCl

Potassium nitrate, KNO3

Sodium thiocyanate, NaSCN

Distilled water, H2O

Nitric acid, HNO3

Sulfuric acid, H2SO4

tap water, H2O

Part A.1

Part A.2

Part A.3

Sodium hydroxide, NaOH

Potassium hydroxide, KOH

Sodium phosphate, tribasic, Na3PO4

Sodium chloride, NaCl

Sodium carbonate, Na2CO3

Sodium oxalate, Na2C2O4

Hydrochloric acid, HCl

Potassium nitrate, KNO3

Sodium thiocyanate, NaSCN

Distilled water, H2O

Nitric acid, HNO3

Sulfuric acid, H2SO4

tap water, H2O

Explanation / Answer

PART-A.1

PART-A.2

PART-A.3

Sodium hydroxide,

NaOH is Base.

Potassium hydroxide,

KOH is Base.

Sodium phosphate tribasic,

Na3PO4 is salt.

Sodium chloride,

NaCl is salt.

Sodium carbonate,

Na2CO3 is salt.

Sodium oxalate,

Na2C2O4 is salt.

Hydrochloric acid,

HCl is acid.

Potassium nitrate,

KNO3 is salt.

Sodium thiocyanate,

KSCN is reducing agent.

Distilled water,

H2O neutral.

Nitric acid,

HNO3 is acid and an oxidizing agent.

Sulfuric acid,

H2SO4 is acid and is oxidizing agent.

Tap water, H2O

Slightly acidic.

Note:

i) Tap water being having CO2 dissolved is slightly acidic.