Science F3 Chapter 5

What is the possible temperature of the solution formed when ammonium chloride powder is dissolved in water at room temperature?

Berapakah kemungkinan suhu larutan yang terbentuk apabila serbuk ammonium klorida dilarutkan dalam air pada suhu bilik?

• 0°C

• 20°C

• 30°C

• 40°C

Which of the following involves an exothermic reaction?

Antara yang berikut, yang manakah melibatkan tindak balas eksotermik?

• 
• 
• 
• 

Which of the following statements is related to an exothermic reaction?

Antara pernyataan berikut, yang manakah berkaitan dengan tindak balas eksotermik?

• The container becomes hot

  Bekas menjadi panas

• Heat is absorbed from the surroundings

  Haba diserap dari sekeliling

• Decomposition of metal nitrates

  Penguraian nitrat logam

• Concentrated sulphuric acid is diluted with water

  Asid sulfurik pekat dicairkan dengan air

An athlete puts a cold pack on an inflamed joint, due to sprained leg. Which of the following chemicals is found in the cold pack?

Seorang olahragawan meletakkan pek sejuk pada bahagian sendi yang bengkak disebabkan terseliuh. Antara bahan kimia berikut, yang manakah terkandung dalam pek sejuk itu?

• Calcium hydroxide

  Kalsium hidroksida

• Sodium chloride

  Natrium klorida

• Potassium oxide

  Kalium oksida

• Ammonium nitrate

  Ammonium nitrat

What is the name of the chemical reaction in which heat is absorbed?

Apakah nama tindak balas kimia di mana haba diserap?

• Exothermic reaction

  Tindak balas eksotermik

• Endothermic reaction

  Tindak balas endotermik

• Reversible reaction

  Tindak balas berbalik

• Substitutive reaction

  Tindak balas gantian

Which of the following is the reaction involved in the photosynthesis?

Manakah antara berikut merupakan tindak balas yang terlibat dalam fotosintesis?

• Exothermic reaction

  Tindak balas eksotermik

• Endothermic reaction

  Tindak balas endotermik

• Reversible reaction

  Tindak balas berbalik

• Condensation reaction

  Tindak balas kondendasi

What is the reaction involved when cooking food?

Apakah tindak balas yang terlibat apabila memasak makanan?

• Exothermic reaction

  Tindak balas eksotermik

• Endothermic reaction

  Tindak balas endotermik

• Reversible reaction

  Tindak balas berbalik

• Condensation reaction

  Tindak balas kondendasi

The diagram shows the setup of an experiment. Which of the following reactions are involved in processes X and Y?

Rajah menunjukkan susunan satu eksperimen. Antara tindak balas berikut, yang manakah terlibat dalam proses X dan Y?

• X: Endothermik / Endotermik

  Y: Exothermic / Eksotermik

• X: Endothermik / Endotermik

  Y: Endothermik / Endotermik

• X: Exothermic / Eksotermik

  Y: Endothermik / Endotermik

• X: Exothermic / Eksotermik

  Y: Exothermic / Eksotermik

Choose two examples of endothermic reaction.

Pilih dua contoh tindak bals endotermik.

• Evaporation of water

  Penyejatan air

• Combustion

  Pembakaran

• Melting of ice

  Pencairan ais

• Rusting

  Pengaratan

Choose two correct statements.

Pilih dua pernyataan yang betul.

• Freezing absorbs heat from surrounding.

  Pembekuan menyerap haba dari persekitaran.

• An exothermic reaction is the process of forming a chemical bond.

  Tindak balas eksotermik merupakan proses oembentukan ikatan kimia.

• An endothermic reaction cause the surrounding temperature to decrease.

  Tindak balas endotermik menyebabkan suhu persekitaran emnurun.

• The breaking of chemical bonds releases heat.

  Pemutusan ikatan kimia membebaskan haba.