Question

Number of chemical componds is not li ked with the number of elements .justify

Answer 1

Answer:

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)F YOU THINK ABOUT ALL OF THE DIFFERENT SUBSTANCES AROUND YOU  IT IS CLEAR THAT THEY

CANNOT ALL BE ELEMENTS )N FACT  WHILE THERE ARE JUST OVER ELEMENTS  THERE ARE

MILLIONS OF DIFFERENT SUBSTANCES -OST SUBSTANCES ARE COMPOUNDS ! COMPOUND IS

A SUBSTANCE MADE OF ATOMS OF TWO OR MORE DIFFERENT ELEMENTS *UST AS THE LETTERS

IN THE ALPHABET CAN FORM THOUSANDS OF WORDS  THE ELEMENTS IN THE PERIODIC TABLE CAN

FORM MILLIONS OF COMPOUNDS

4HE ATOMS OF DIFFERENT ELEMENTS ARE HELD TOGETHER IN COMPOUNDS BY CHEMICAL

BONDS #HEMICAL BONDS CAN HOLD ATOMS TOGETHER IN LARGE NETWORKS OR IN SMALL GROUPS

"ONDS HELP DETERMINE THE PROPERTIES OF A COMPOUND

4HE PROPERTIES OF A COMPOUND DEPEND NOT ONLY ON WHICH ATOMS THE COMPOUND

CONTAINS  BUT ALSO ON HOW THE ATOMS ARE ARRANGED !TOMS OF CARBON AND HYDROGEN  

FOR EXAMPLE  CAN COMBINE TO FORM MANY THOUSANDS OF DIFFERENT COMPOUNDS 4HESE

COMPOUNDS INCLUDE NATURAL GAS  COMPONENTS OF AUTOMOBILE GASOLINE  THE HARD WAXES

IN CANDLES  AND MANY PLASTICS %ACH OF THESE COMPOUNDS HAS A CERTAIN NUMBER OF

CARBON AND HYDROGEN ATOMS ARRANGED IN A SPECIlC WAY

4HE PROPERTIES OF COMPOUNDS ARE OFTEN VERY DIFFERENT FROM THE PROPERTIES OF THE

ELEMENTS THAT MAKE THEM &OR EXAMPLE  WATER IS MADE FROM TWO ATOMS OF HYDROGEN

BONDED TO ONE ATOM OF OXYGEN !T ROOM TEMPERATURE  HYDROGEN AND OXYGEN ARE BOTH

COLORLESS  ODORLESS GASES  AND THEY REMAIN GASES DOWN TO EXTREMELY LOW TEMPERATURES

7ATER  HOWEVER  IS A LIQUID AT TEMPERATURES UP TO # &  AND A SOLID

BELOW # & 3UGAR IS A COMPOUND COMPOSED OF ATOMS OF CARBON  HYDROGEN  

ANDOXYGEN )TS PROPERTIES  HOWEVER  ARE UNLIKE THOSE OF CARBON  HYDROGEN  OR OXYGEN

4HE ELEMENTS CALCIUM AND CHLORINE COMBINE TO FORM THE COMPOUND CALCIUM

CHLORIDE #ALCIUM IS A SOFT  SILVERY METALLIC SOLID #HLORINE IS A GREENISH YELLOW GAS

THAT IS EXTREMELY REACTIVE AND POISONOUS TO HUMANS #ALCIUM CHLORIDE  HOWEVER  

IS A NONPOISONOUS WHITE SOLID 0EOPLE WHO LIVE IN COLD CLIMATES OFTEN USE CALCIUM

CHLORIDE TO MELT THE ICE THAT FORMS ON STREETS IN THE WINTERTIME

Explanation: