Lembaran kerja Kimia untuk peperiksaan kemasukan kejururawatan dengan jawapan

Dalam keadaan jirim yang manakah zarah mempunyai bentuk dan isi padu yang tetap?

1. ACecair
2. BPlasma
3. CGas
4. DPepejal

What is the formula of methane, the main gas in natural gas?

1. ACO₂
2. BC₂H₆
3. CCH₂
4. DCH₄

What does the octet rule state?

1. AAn atom can form a maximum of 8 covalent bonds
2. BEvery stable molecule contains exactly 8 atoms
3. CEvery stable atom has exactly 8 protons in its nucleus
4. DAtoms tend to gain, lose or share electrons to get 8 outer electrons

Merentasi kala dari kiri ke kanan, bagaimanakah jejari atom lazimnya berubah?

1. AIa mula-mula berganda, kemudian separuh
2. BIa kekal sama
3. CIa bertambah
4. DIa berkurang

How much heat is needed to raise the temperature of 100 g of water by 10 °C (specific heat of water = 4.18 J/g·°C)?

1. A418 J
2. B4180 J
3. C41.8 J
4. D41,800 J

What is the oxidation number of oxygen in most of its compounds?

1. A−2
2. B0
3. C−1
4. D+2

In Rutherford's gold foil experiment, most alpha particles passed straight through the foil but a few bounced back. What did this show?

1. AAtoms are solid, indivisible spheres
2. BAn atom is mostly empty space with a small, dense, positive nucleus
3. CElectrons move in fixed circular orbits
4. DElectrons are spread evenly through a positive "pudding"

At the top of a high mountain, air still contains about 21% oxygen. Why do climbers still get less oxygen with each breath?

1. AOxygen is heavier, so it all sinks to sea level
2. BCold air contains no oxygen
3. CThe percentage of oxygen in the air falls sharply as you climb higher
4. DThe total air pressure is lower, so the partial pressure of oxygen is lower