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WorksheetsChemistry ELP
Total questions: 12
Worksheet time: 3mins
WRITE THE DEFINITION OF CHEMICAL REACTION.
(IN CAPITAL LETTERS)
(a)
THE NEUTRAL GAS OBTAINED ON THE THERMAL DECOMPOSITION OF POTASSIUM NITRATE
HYDROGEN
OXYGEN
NITROGEN
CARBON MONOXIDE
WHEN AMMONIUM CHLORIDE IS REACTED WITH CALCIUM HYDROXIDE.
WHICH GAS IS EVOLVED?
SO2
NH3
CO2
CAN'T TELL
NAME THE REACTION
AgNO3 + KCL -> AgCL↓ + KNO3
ENDOTHERMIC
DOUBLE DECOMPOSITION REACTION
EXOTHERMIC
PHOTOCHEMICAL REACTION
A + B -> AB
WHICH TYPE OF REACTION IS SHOWN ABOVE
SYNTHESIS
DECOMPOSITION REACTION
DISPLACEMENT REACTION
DOUBLE DECOMPOSITION REACTION
Fe + S -> FeS
BY SEEING THE ABOVE REACTION ANSWER THAT THE REACTION IS SOLUBLE OR INSOLUBLE
SOLUBLE
INSOLUBLE
NH3 [g] + HCL [g] -> ___
WHAT WWILL BE THE PRODUCT?
AND WHICH REACTION IS IT?
NH4 Cl
SYNTHESIS
NH2 Cl
SUBSTITUTION
NH3
NH4 Cl
NAME THE REACTION SHOWN
4NH3 + 5O2 -> 4NO + 6H2O + △T
EXOTHERMIC
ENDOTHERMIC
PHOTOCHEMICAL
HEATING
HOW DO CHEMICAL REACTIONS TURN SUBSTANCES INTO NEW SUBSTANCES?
THE ATOMS BREAK APART AND COMBINE BACK TOGETHER IN NEW WAYS
THE IONIC COMPOUNDS MIX IN WATER TO FORM SOLUTIONS
BY HEATING
BY ADDING ACIDS
STATE WHICH TYPE OF REACTION IS THIS
Absorption of heat energy and evolution og heat energy
ENDOTHERMIC REACTION
ENDOTHERMIC AND EXOTHERMIC REACTION
EXOTHERMIC REACTION
NONE OF THE ABOVE
STATE THE COLOUR AND NAME OF THE PRECIPITATE FORMED IN THE REACTION
ZnSO4 +2NH4OH -> (NH4) 2SO + Zn(OH)2 ↓
(NH4) 2SO
Zn (OH)2
REDDISH BROWN
GELATINOUS WHITE
THERMAL DECOMPOSITION REACTION IS BROUGHT ABOUT BY ___
LIGHT
HEAT
ELECTRIC CURRENT
WATER
