Give the names of the following compounds:
- CO2
- H202
- Ni(Mno4)2
- Co3(AsO4)2
- KCN
- Sb2O5
- BaH2
- NaHSO3
- As(NO2)5
- KSCN
- Ag2co3
- CrF3
- Sns2
- H2S03(aq)
- Hgc2o4
- Pb(HCO3)2
- Cu(OH)2
The correct answer and explanation is :
Here are the names of the compounds along with explanations:
- CO2 – Carbon dioxide
- A colorless, odorless gas that is a product of combustion of organic matter and respiration.
- H2O2 – Hydrogen peroxide
- A chemical compound used primarily as a bleaching agent or disinfectant, with one more oxygen atom than water.
- Ni(MnO4)2 – Nickel(II) permanganate
- This compound contains nickel in a +2 oxidation state and permanganate ions (MnO4−), which are known for their strong oxidizing properties.
- Co3(AsO4)2 – Cobalt(II) arsenate
- This compound is made up of cobalt in the +2 oxidation state and arsenate ions (AsO4^3−).
- KCN – Potassium cyanide
- A highly toxic compound consisting of potassium (K) and cyanide (CN) ions. It is used in mining and electroplating.
- Sb2O5 – Antimony pentoxide
- A compound formed by antimony (Sb) and oxygen (O) in a 2:5 ratio, used in flame retardants and as a catalyst.
- BaH2 – Barium hydride
- A metal hydride where barium (Ba) is bonded to hydrogen (H), often used as a reducing agent in chemical reactions.
- NaHSO3 – Sodium bisulfite
- A compound containing sodium (Na), hydrogen (H), sulfur (S), and oxygen (O), commonly used as a food preservative and in water treatment.
- As(NO2)5 – Arsenic pentanitrite
- A compound containing arsenic (As) in the +5 oxidation state and five nitrite ions (NO2−).
- KSCN – Potassium thiocyanate
- A salt consisting of potassium (K) and thiocyanate (SCN−) ions, used in chemical analysis and as a reagent in laboratories.
- Ag2CO3 – Silver carbonate
- A compound consisting of silver (Ag) and carbonate (CO3^2−) ions, often used in various chemical reactions.
- CrF3 – Chromium(III) fluoride
- A compound where chromium (Cr) is in the +3 oxidation state, combined with fluoride (F) ions.
- SnS2 – Tin(IV) sulfide
- A compound formed by tin (Sn) in the +4 oxidation state and sulfide (S) ions. It is used in various industrial applications.
- H2SO3(aq) – Sulfurous acid
- An aqueous solution of sulfur dioxide (SO2) dissolved in water, a weak acid used as a reducing agent.
- Hg(C2O4) – Mercury(II) oxalate
- A compound where mercury (Hg) is in the +2 oxidation state and combined with oxalate (C2O4^2−) ions.
- Pb(HCO3)2 – Lead(II) bicarbonate
- A compound formed from lead (Pb) in the +2 oxidation state and bicarbonate (HCO3−) ions.
- Cu(OH)2 – Copper(II) hydroxide
- A compound with copper (Cu) in the +2 oxidation state, bonded with hydroxide (OH−) ions. It is commonly found as a blue precipitate.
Explanation:
These names follow the rules of chemical nomenclature based on the International Union of Pure and Applied Chemistry (IUPAC). For binary compounds (those made of two elements), the name often reflects the elements involved (e.g., “sodium cyanide” for NaCN). For compounds involving transition metals, Roman numerals indicate the oxidation state of the metal (e.g., “copper(II) hydroxide” for Cu(OH)2). Polyatomic ions like sulfate (SO4^2−), nitrate (NO3−), and carbonate (CO3^2−) are commonly used in naming compounds.