BAB 5 : AIR DAN LARUTAN

Proses yang manakah digunakan untuk mengasingkan komposisi air ?

• Elektrolisis

• Hidrolisis

• Fotosintesis

• Simbiosis

Apakah perubahan yang berlaku kepada air pada takat leburnya? / What change takes place in water at its melting point?

• Cecair kepada gas / Liquid to gas

• Gas kepada pepejal / Gas to solid

• Pepejal kepada cecair / Solid to liquid

• Cecair kepada pepejal / Liquid to solid

Apakah ciri-ciri fizikal air? / What is the characteristics of water?

• Berbau / Has smell

• Berwarna / Has colour

• Ada rasa / Tasty

• Menyebabkan tindakan kapilari / Can cause capillary action

Apakah kesan penambahan garam terhadap takat lebur ais dan takat didih air suling ? / What is the effect of the addition of salt on the melting point of ice and the boiling point of distilled water ?

• Garam menurunkan takat lebur ais / Salt lowers the melting point of ice.

• Garam menaikkan takat lebur ais / Salt increases the melting point of ice

• Garam menurunkan takat didih air suling / Salt lowers the boiling point of distilled water

• Garam tidak memberi sebarang perubahan pada takat lebur ais / Salt does not cause any change to the melting point of ice.

Air ialah campuran. / Water is a mixture.

• Benar / True

• Palsu / False

Formula kimia bagi air? / The chemical formula for water?

• HO

• OH

• O₂H

• H₂O

Takat didih air ialah / Boiling point of water is

• 0°C

• 50°C

• 100°C

• 1000°C

Takat beku air ialah / Freezing point of water is

• 0°C

• 50°C

• 100°C

• 1000°C

Bunyi “POP” kedengaran. / “POP” sound is heard.

• Kehadiran gas oksigen / Presence of oxygen

• Kehadiran gas hidrogen / Presence of hydrogen

• Kehadiran gas karbon dioksida / Presence of carbon dioxide

• Kehadiran gas nitrogen / Presence of nitrogen

Kayu uji berbara menyala. / Glowing wooden splinter light up.

• Kehadiran gas oksigen / Presence of oxygen

• Kehadiran gas hidrogen / Presence of hydrogen

• Kehadiran gas karbon dioksida / Presence of carbon dioxide

• Kehadiran gas nitrogen / Presence of nitrogen