Lembaran kerja Kimia untuk peperiksaan kemasukan kejururawatan dengan jawapan

Which process is exothermic (releases heat)?

1. APhotosynthesis
2. BMelting a block of ice
3. CBurning methane gas
4. DEvaporating water

What is the SI base unit of mass?

1. ANewton
2. BGram
3. CKilogram
4. DPound

Apakah mol dalam kimia?

1. ABilangan proton dalam atom
2. BKuantiti bahan yang mengandungi 6.02 × 10²³ zarah
3. CJisim dalam gram tepat satu atom karbon-12 pada skala itu
4. DIsi padu satu liter mana-mana gas

Oxygen has 8 electrons. What is its electron configuration?

1. A1s² 2s² 2p⁶
2. B1s² 2s⁶
3. C1s² 2p⁶
4. D1s² 2s² 2p⁴

What is the normal boiling point of a liquid?

1. AThe temperature at which its particles stop moving
2. BThe temperature at which its vapour pressure equals 1 atmosphere
3. CThe temperature at which it first starts to evaporate
4. DThe temperature at which its density is greatest

What are isomers?

1. AAtoms of the same element with different numbers of neutrons
2. BCompounds with the same structure but different molecular formulas
3. CMolecules that contain the same number of bonds
4. DCompounds with the same molecular formula but different structures

A mixture contains sand, salt and water. Which sequence separates all three?

1. AFilter to remove the sand, then distil the filtrate to collect water and leave salt
2. BDistil first to remove the sand, then filter out the salt
3. CUse a magnet to remove the salt, then filter the sand
4. DEvaporate all the water first, then filter the salt away from the dry sand

A sealed rigid can holds gas at 2 atm and 27 °C. It is heated to 327 °C. What is the new pressure?

1. A4 atm
2. B24 atm
3. C1 atm
4. D2.4 atm