1. Are used to show the number of each ion in the formula. 2. Used to show the n

Question

1. Are used to show the number of each ion in the formula.
2. Used to show the number of atoms of each element when naming a molecular compound.
3. Carbon compounds are a special type of molecular compound with a prefix denoting the number of _______ atoms and the suffix denoting the type of ________. 1. Are used to show the number of each ion in the formula.
2. Used to show the number of atoms of each element when naming a molecular compound.
3. Carbon compounds are a special type of molecular compound with a prefix denoting the number of _______ atoms and the suffix denoting the type of ________.
2. Used to show the number of atoms of each element when naming a molecular compound.
3. Carbon compounds are a special type of molecular compound with a prefix denoting the number of _______ atoms and the suffix denoting the type of ________.

Explanation / Answer

1) subscripts are used to show number of each ion in the formula.

   eg :     MgCl2 here subscripts   2 indicate 2 Cl- ions present in the formula.

              Al2(SO4)3     , in this compound 2 ----------------> Al+3 ions and 3-----------------> SO4-2 ions

2) di, tri , tetra, penta, hexa ....... are used to show number of atoms of each element when naming a molecular compound

if two atoms present we call it as di, if three that is tri , if four that is tetra and so on.

eg:

CCl4 ----------------------> carbon tetra chloride (here 4 chlorine atoms are present)

SiO2 -----------------------> silicon dioxide    (here two oxygen atoms are present)

PCl5 ------------------------> Phosphorous penta chloride (here 5 Cl atoms are present)

3) Carbon compounds are a special type of molecular compound with a prefix denoting the number of ___carbon____ atoms and the suffix denoting the type of    _fuctional group_______.

eg : CH3-CH2-COOH

here prefix --------------->. propan , because three carbon atoms are present

suffix -------------------> oic acid    (-COOH functional group)

so name of the compund : propanoic acid

eg : CH3-CH2-CH2-CH2-OH

    here 4 carbons are there - prefix - butan

   -OH alcohol is the functional group - suffix - -ol

name of the compound 1 - butanol

  

              

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