image

    Have a query? Ask a Tutor!!

    Access to best educators and exclusive paper discussions

    Can’t find what you’re looking for?

    Our tutors are from top schools around the world, and they are waiting for you 24/7, anytime, anywhere.

    • Homework- One to One Solutions
    • Understand concepts to solve better
    • Get your doubts solved instantly
    Chemistry
    Grade-9
    Easy

    Question

    The overall charge in a compound must be ____________, So that the charge of iron in Fe2O3 can be calculated as 3+.

    1. 2+
    2. 1+
    3. 0
    4. 1-

    Hint:

    Generally compounds are neutral.

    The correct answer is: 0

      • The overall charge in a compound must be zero.
      • Generally compounds are neutral balancing out the cationic and anionic charges.
      • In the compound Fe2O3 the expected charge of Fe is +3 and we know charge of oxygen is -2. There are two Fe and three O, the balances out.

      Related Questions to study

      Grade-9
      Chemistry


      The covalent compound N2O5 would be named

      1. Nitrogen oxide
      2. Dinitrogen oxide
      3. Nitrogen pentoxide
      4. Dinitrogen pentoxide


      The covalent compound N2O5 would be named

      ChemistryGrade-9
      1. Nitrogen oxide
      2. Dinitrogen oxide
      3. Nitrogen pentoxide
      4. Dinitrogen pentoxide
      Grade-9
      Chemistry

      An ionic compound made of copper (Cu2+) and oxygen would be named as:

      1. Copper oxygen
      2. Copper oxide
      3. Copper oxide Dicopper oxide
      4. Copper(II) oxide

      An ionic compound made of copper (Cu2+) and oxygen would be named as:

      ChemistryGrade-9
      1. Copper oxygen
      2. Copper oxide
      3. Copper oxide Dicopper oxide
      4. Copper(II) oxide
      Grade-9
      Chemistry

      A covalent compound made of one sulfur and two oxygen atoms would be named as:

      1. Sulfur dioxide
      2. Sulfur oxide
      3. Disulfur oxide
      4. Sulfide oxygen

      A covalent compound made of one sulfur and two oxygen atoms would be named as:

      ChemistryGrade-9
      1. Sulfur dioxide
      2. Sulfur oxide
      3. Disulfur oxide
      4. Sulfide oxygen
      parallel
      Grade-9
      Chemistry

      An ionic compound of calcium and chlorine would be named as:

      1. Calcium chlorine
      2. Calcium chlorite
      3. Calcium chloride
      4. Chlorine calcium

      An ionic compound of calcium and chlorine would be named as:

      ChemistryGrade-9
      1. Calcium chlorine
      2. Calcium chlorite
      3. Calcium chloride
      4. Chlorine calcium
      Grade-9
      Chemistry


      What is the chemical name of NH3?

      1. Nitrogen hydrogen
      2. Nitrogen trihydrogen
      3. Mononitrogen trihydride
      4. Nitrogen trihydride


      What is the chemical name of NH3?

      ChemistryGrade-9
      1. Nitrogen hydrogen
      2. Nitrogen trihydrogen
      3. Mononitrogen trihydride
      4. Nitrogen trihydride
      Grade-9
      Chemistry

      What is the chemical name of LiNO3 :       

      1. Lithium nitride
      2. Lithium nitrate
      3. Monolithium nitride
      4. Monolithium nitrate

      What is the chemical name of LiNO3 :       

      ChemistryGrade-9
      1. Lithium nitride
      2. Lithium nitrate
      3. Monolithium nitride
      4. Monolithium nitrate
      parallel
      Grade-9
      Chemistry

      What is the chemical name of C3H8 :        

      1. Tricarbon octahydride
      2. Carbon hydride
      3. Carbon octahydride
      4. Tricarbon hydride

      What is the chemical name of C3H8 :        

      ChemistryGrade-9
      1. Tricarbon octahydride
      2. Carbon hydride
      3. Carbon octahydride
      4. Tricarbon hydride
      Grade-9
      Chemistry

      Which of the following elements can readily forms the ionic compounds:               

      1. Cu and Cl
      2. Na and Cl
      3. Zn and Ag
      4. Al and Fe

      Which of the following elements can readily forms the ionic compounds:               

      ChemistryGrade-9
      1. Cu and Cl
      2. Na and Cl
      3. Zn and Ag
      4. Al and Fe
      Grade-9
      Chemistry

      Name the following: N2O5

      1. Nitrogen oxide
      2. Dinitrogen pentoxide
      3. Nitrous oxide
      4. Nitrogen pentoxide

      Name the following: N2O5

      ChemistryGrade-9
      1. Nitrogen oxide
      2. Dinitrogen pentoxide
      3. Nitrous oxide
      4. Nitrogen pentoxide
      parallel
      Grade-9
      Chemistry

      The compound H3P is called:

      1. Trihydro phosphide acid
      2. Hydrophosphoric acid
      3. Hydrogen(II) phosphide
      4. Hydrogen Phosphide

      The compound H3P is called:

      ChemistryGrade-9
      1. Trihydro phosphide acid
      2. Hydrophosphoric acid
      3. Hydrogen(II) phosphide
      4. Hydrogen Phosphide
      Grade-9
      Chemistry

      What is the chemical formula for Titanium(IV) cyanide

      1. Ti4CN
      2. TiCN
      3. Ti2CN4
      4. Ti(CN)4

      What is the chemical formula for Titanium(IV) cyanide

      ChemistryGrade-9
      1. Ti4CN
      2. TiCN
      3. Ti2CN4
      4. Ti(CN)4
      Grade-9
      Chemistry

      What is the chemical name of the Mg(C2H3O2)2

      1. Magnesium Acetoactetate
      2. Magnesium acetate
      3. Magnesium CarbonHydrogen
      4. Magnesium acetic acid

      What is the chemical name of the Mg(C2H3O2)2

      ChemistryGrade-9
      1. Magnesium Acetoactetate
      2. Magnesium acetate
      3. Magnesium CarbonHydrogen
      4. Magnesium acetic acid
      parallel
      Grade-9
      Chemistry

      What is the chemical formula of Aluminium Carbonate?

      1. Al2CO3
      2. Al2(CO3)3
      3. AlCO3
      4. Al2CO4

      What is the chemical formula of Aluminium Carbonate?

      ChemistryGrade-9
      1. Al2CO3
      2. Al2(CO3)3
      3. AlCO3
      4. Al2CO4
      Grade-9
      Chemistry

      The name of Cu(OH)2 is:

      1. Copper hydroxide
      2. Copper(I) hydroxide
      3. Copper(II) hydroxide
      4. Copper(III) hydroxide

      The name of Cu(OH)2 is:

      ChemistryGrade-9
      1. Copper hydroxide
      2. Copper(I) hydroxide
      3. Copper(II) hydroxide
      4. Copper(III) hydroxide
      Grade-9
      Chemistry

      The name of KHCO3 is:

      1. Potassium carbonate
      2. Potassium hydrogen carbonate
      3. Potassium Hydroxide
      4. Potassium Hydro carboxide

      The name of KHCO3 is:

      ChemistryGrade-9
      1. Potassium carbonate
      2. Potassium hydrogen carbonate
      3. Potassium Hydroxide
      4. Potassium Hydro carboxide
      parallel

      card img

      With Turito Academy.

      card img

      With Turito Foundation.

      card img

      Get an Expert Advice From Turito.

      Turito Academy

      card img

      With Turito Academy.

      Test Prep

      card img

      With Turito Foundation.