EKSPERIMEN CHP 5.doc

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EXPERIMENT 1: REACTIVITY OF METAL WITH WATER AIM: To study the reactivity of metals with water MATERIAL: Sodium, Calcium, Magnesium, Aluminium, Zinc, Copper, wooden splinter, blue litmus paper and red litmus paper. APPARATUS: Glass trough, beaker, test tubes, filter funnel, retort stand with clamp and bunsen burner PROCEDURE

Transcript of EKSPERIMEN CHP 5.doc

REACTIVITY OF METAL WITH WATER

EXPERIMENT 1:

REACTIVITY OF METAL WITH WATER

AIM: To study the reactivity of metals with water

MATERIAL: Sodium, Calcium, Magnesium, Aluminium, Zinc, Copper, wooden splinter, blue

litmus paper and red litmus paper.

APPARATUS: Glass trough, beaker, test tubes, filter funnel, retort stand with clamp and bunsen

burner

PROCEDURE

OBSERVATION:

ACTIVITYOBSERVATION

ASodium reacts ...................................... With water, with a hissing sound, and releases a ......................................... The ................................ Litmus paper turn .............................................

BCalsium react readily with water, releasing a ........................................; the splinter burns with a .................. The ............................ Litmus paper turns ............................

CMgnesium Magnesium does not react with .......................... but it react with ................................................. and releases a ........................................... The red litmus paper turn ........................

AluminiumAluminium does not react with .......................... but it react with ................................................. and releases a ........................................... The reaction is .......................... reactive compare to magnesium. The red litmus paper turn ........................

ZincZinc does not react with .......................... but it react with ................................................. and releases a ........................................... The reaction is .......................... reactive compare to aluminium. The red litmus paper turn ........................

CopperNo reaction is observed.

DISCUSSION:

Name the metals that can react with

water at room temperatur; ............................................................................................

Hot water; .....................................................................................................................

What is the use of the burning wooden splinter? ..........................................................................

Which metal does not react with water? ...............................................................................What are produced when a metal reacts with water? .....................................................................Arrange the metals used in the activities in the order of descending vigour of reaction with water.................................................................................................................................................

CONCLUSION:..........................................react most readily with water, followed by ........................................,

........................................., ..................................................., ........................................., and .............................. in the order of descending vigour of reaction.

EXPERIMENT 2

REACTIVITY OF METALS WITH ACIDS AND OXYGEN

ACTIVITY A: REACTION OF METALS WITH ACIDAIM: To study the reactivity of metals with acids

MATERIAL: Dilute hydrochloric acid, magnesium, aluminium, zinc and copper

APPARATUS: Glass trough, test tube, delivery tube

PROCEDURE:

ACTIVITY B: REACTION OF METALS WITH OXYGENAIM: To study the reactivity of metals with acids

MATERIAL: Magnesium, aluminium, zinc, copper and potassium manganate (VII)

APPARATUS: Boiling tube, glass wood, retort stand with clamp and bunsen burner

PROCEDURE:

OBSERVATION:ACTIVITYOBSERVATION

AMagnesium A ................................... Reaction occurs and a ....................... is released. Produce ......................... with burning wooden splinter.

AluminiumA ................................... Reaction occurs and a ....................... is released. Produce ......................... with burning wooden splinter.

ZincA ................................... Reaction occurs and a ....................... is released. Produce ......................... with burning wooden splinter.

Copper

BMagnesium Magnesium burns .................................................

AluminiumAluminium burns quite ..............................................

ZincZinc burns .......................................

CopperCopper .......................................................

CONCLUSION:

.................................................. is the most reactive metal among the four, followed by ..........................................., ......................................... and finally ...............................................