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GRP2

QuestionAnswer
STRONTIUM AND BARIUM OXIDE REACT WITH H2O TO GIVE... ALKALINE SOLUTIONS OF HYDROXIDE.
OXIDES AND OH OF GROUP 2 REACT WITH ACID TO FORM ... WATER AND SALTS. (NEUTRALIZATION REACTION) FOR IONIC EQUATIONS NORMALLY SO4 2- CANCELLED OUT.
WATER ISN’T ... SPLIT INTO IONS.
GIVE EXAMPLE OF AMPHOTERIC COMPOUND... BEO , AMPHOTERIC REACTS AS BASE AND ACID. SO FORMED BE + IONS OR BE(OH)42-.
GROUP 1 HYDROXIDES REACT WITH ACIDS =... SALT AND WATER. ALL GROUP ONE ARE SOLUBLE AND FORM ALKALINE SOLUTIONS WITH HIGH PH.
CARBON DIOXIDE GAS – REACTS WITH CAOH BASE THEY FORM.... SALT CALCIUM CARBONATE +WATER.
WHAT CAN CAC03 BE USED FOR ... CACO3 IS INSOLUBLE
IF CO2 PASSED OVER CACO2 THE MILKYNESS CLEARS AS ... SOLUBLE ACID SALT CALCIUM HYDROGEN CARBONATES FORMED CA (HC03)2(G).
WHICH IS SOLUABLE CAHCO3 OR CAOH ... CALCIUM HYDROCARBONATE IS SOLUBLE IN WATER, CACO2 INSOLUBLE CAN BE USED AS TEST TO SEE BETWEEN HYDROGENCARBONATE AND CARBONATE.
WHAT FORMS WHEN A SOLUTION ADDED TO CACL IF CARBONATE AND HCO3... A WHITE PRECIPITATE OF CALCIUM CARBONATE FORMED. IF HYDROGEN CARBONATE NO PRECIPITATE FORMS ONLY WHEN HEATED,
HOW WOULD YOU MAKE PRECIPITATE FROM WITH CO3 + CACL... HEATING IT .THE HYDROGEN CO3 IONS DECOMPOSE FORM CARBONATE IONS C02 AND WATER. 2HCO3- (AQ)  CO32- (AQ) + CO2 (G) + H20(L).
THE CARBONATE ION THEN REACT WITH .. CALCIUM IONS TO FORM A PRECIPITATE OF INSOLUBLE CALCIUM CARBONATE. CO32-(AQ) + CA2+(AQ) CACO3(S).
SOLUBILITY OF GROUP 2 HYDROXIDES ... INCREASE DOWN GROUP.
BERYLLIUM HYDROXIDE IS INSOLUBLE/SOLUABLE ? INSOLUABLE
MAGNESIUM HYDROXIDE INSOLUBLE/SOLUABLE? VERY SLIGHTLY SOLUABLE.,
CALCIUM HYDROXIDE IS INSOLUBLE/SOLUABLE ? SLIGHTLY SOLUBLE.
STRONTIUM AND BARIUM HYDROXIDE ARE INSOLUBLE/SOLUABLE ?... MORE SOLUBLE.
SOLUBILITY OF GR2SULFATES DECREASE ... DOWN THE GROUP., BERYLLIUM AND MG SULPHATE ARE INSOLUBLE/SOLUABLE?
VERY SOLUBLE.
CALCIUM SULPHATE IS INSOLUBLE/SOLUABLE? SLIGHT SOLUBLE.,
STRONTIUM SULPHATE IS INSOLUBLE/SOLUABLE ? VERY SLIGHTLY SOLUBLE.,
BARIUM SULPHATE IS INSOLUBLE/SOLUABLE? INSOLUBLE.,
BARIUM SULPHATE SO INSOLUBLE THAT ... PASSED UNAFFECTED THROUGH ALIMENTARY CANAL. (LEAD TO ITS USE IN HOSPITALS)
WHY IS BARIUM SIULPAHTE GOOD FOR HOSPITALS ... PASTE OF BARIUM SULPHATE EATEN (BARIUM METAL). PATIENT THEN IS X RAYED., THE PROCESS OF BARIUM SULPHATE THROUGH DIGESTIVE TRACT OBSERVED & IF ANY OBSTRUCTION.
BARIUM IS OPAQUE TO SOME X RAYS COZ ... HIGH EFFECTIVE NUCLEAR CHARGE. ADDING SOLUTION OF NAS OR A COMPOUND CONTAINING SULPHATE TO STRONTIUM, BARIUM, CALCIUM WHAT COLOUR PRECIPITAE FORMED... A WHITE PRECIPITATE OF INSOLUBLE SULFATE IS FORMED. BA2+ (AQ) +SO42- (AQ)  BASO4(S).
BARIUM SULPHATE SOO INSOLUBLE THAT WHEN DILUTE ... SULPHURIC ACID IS ADDED TO PIECE OF BARIUM METAL THE REACT STOPS AT ONCE. AND CAUSES A LAYER OF INSOLUBLE BARIUM SULPHATE TO FORM ON SURFACE. THIS LAYER PREVENTS FURTHER ACID FORM REACHING THE UNREACTED METAL.
WHAT DOES LAYER OF INSOLUBLE BARIUM SULPHATE PREVENT ... FURTHER ACID FORM REACHING THE UNREACTED METAL.
BAS04 SO UNREACTIVE THAT... CAN BE PASSED THROUGH ALIMENTARY CANAL TO FIND OBSTRCUTION IT’S OPAQUE.
SHORT REACTION WITH DILUTE SULPHURIC ACID.
Created by: ufuoma