chap 7/2
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| IF HEXANE ADDED TO AQUEOUS SOLUTION WITH HALOGEN ... | SOLUTION OF IODINE IN HEXANE IS VIOLET.
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| BONDING IN COMPOUNDS OF HALOGENS IS .. | IONIC BONDING
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| HALOGENS 1- CHARGE COZ... | HIGH ELECTRONEGATIVITY VALUES & WHEN HALOGEN ATOM ACCEPTS AN ELECTRON THE
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| ELECTRON CONFIGURATION COMPLETE. |
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| GROUP I1 AND 2 METAL HALIDES ARE IONIC OR COVALENT ... | IONIC CACL.
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| GROUP 3 ALF3 IS IONIC COZ... | METAL AND NON METAL.
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| ANHYDROUS ALUMINIUM CHLORIDE IS COVALENT OR IONIC....? | COVALENT ALCL3.6H2O EACH ALUMINIUM SURROUNDED BY 6 H20 MOLECULES WITH DATIVE COVALENT BONDS FROM OXYGEN TO THE CENTRAL AL3+ ION. ANHYDROUS ALUMINIUM
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| CL- SUBLIMES ON HEATING PRODUCING... | GAS AL2CL6.
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| IN THIS DIMER THE 2 ALCL3 UNITS JOINED BY DATIVE BONDS .. | . EACH FORM A CHLORINE ATOMS. THE OUTER ORBIT CONTAINS AN OCTET OF ELECTRONS.
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| ALL ATOM IN COVALENT ALCL3 HAS ... | 6 ELECTRONS IN OUTER ORBIT ITS OWN 3 PLUS OTHER 3.
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| A LONE PAIR IN A CL ATOM IN ANOTHER ALCL3 FORMS ... | A DATIVE BOND USING AN EMPTY 3P ORBITAL OF AL.
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| COZ OF DATIVE BOND IN ALCL3 AL HAS ... | AL HAS 4 PAIRS OF ELECTRONS IN OUTER ORBIT. AND THE 4 CL ARE ARRANGED TETRAHEDRAL.
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| HOW IS ALCL3 ARRANGED ... | TETRAHEDARLLY.
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| WHEN 2 ALCL3 ATOMS JOIN ARE THERE BONDS BETWEEN THEM ... | NO BONDS BETWEEN THE 2 AL ATOMS (DON’T DRAW A BOND).
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| BONDING WITH D BLOCK METALSà CL BR I IN WHAT BLOCK... | D BLOCK METALS
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| D BLOCK METALS ARE ... | ARE COVALENT WHEN ANHYDROUS & IONIC WHEN HYDRATED. FECL3 IS COVALENT AND SOLUBLE IN ORGANIC SOLVENTS.
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| HYDRATED ION ARE BONDED WITH ... | 6 MOLS OF WATER BONDED DATIVE COVALENT BONDS FROM OXYGEN IN WATER TO EMPTY 3D-4SP ORBITAL'S OF THE IRON 3+ ION. THE SHAPE IS OCTAHEDRAL & THE CORNERS LABELLED OH2.
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| COVALENT BONDING:à HALOGENS FORM POLAR ... | POLAR COVALENT BONDS WITH ALMOST ALL NON METALS.
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| FLUORINE IS THE MOST.. | . ELECTRONEGATIVE. IN THE -1 OXIDATION STATE
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| WHEN DOES FLOURINE HAVE TO BE POSISTIVE ... | WHEN BONDED TO F- OR O2-.
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| CHLORINE HAS 5 EMPTY 3D ORBITAL'S, SO ONE OF ... | OF 3P ELECTRONS CAN BE PROMOTED.
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| WHY CAN A CHLORINE 3P ELECTRON BE PROMOTED ... | COZ CHLORINE HAS EMPTY 3P ORBITAL.
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| HOW MANT COVALENT BONDS CAN CHLORINE FORM... | MORE THAN 1.
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| OXIDISING POWER OF HALOGENS IN OR DE... | DECREASE DOWN THE GROUP.
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| METALS REACT WITH HALOGEN TO FORM ... | HALIDES
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| WHICH IS THE LESS POWERFUL OXIDISING AGENT IN GR7 ... | IODINE FE + I2 àFEI2
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| IN A LIMITED SUPPLY OF O2 . 2P+ 3CL2 à 2PCL3. ... | PHOSPHORUS TRICL- CAN REACT WITH CL- AND FORM PENTA CL-.
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| IN EXCESS CL- PHOSPHORUS PENTACHLORIDE IS FORMED. 2P + 5CL2 --> 2PI5. |
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