Lembar kerja Kimia untuk ujian masuk keperawatan dengan jawaban

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Nama: ____________________   Tanggal: ____________

1.Mudah

What is the melting point of a substance?

  1. AThe temperature at which it catches fire
  2. BThe temperature at which its liquid turns into a gas
  3. CThe temperature at which it dissolves in water
  4. DThe temperature at which its solid turns into a liquid
2.Mudah

Which process is exothermic (releases heat)?

  1. ABurning methane gas
  2. BEvaporating water
  3. CPhotosynthesis
  4. DMelting a block of ice
3.Mudah

What is osmosis?

  1. AThe movement of solute particles against a gradient using energy
  2. BThe breaking of a solid into ions
  3. CThe dissolving of a gas in a liquid
  4. DThe movement of water across a semipermeable membrane
4.Sedang

Why does oxygen move from the alveoli of the lungs into the blood?

  1. AThe partial pressure of oxygen is higher in the blood than in the alveoli
  2. BOxygen is heavier than carbon dioxide
  3. CThe partial pressure of oxygen is higher in the alveoli than in the blood
  4. DOxygen is pumped actively into the blood
5.Sedang

Potassium forms K⁺ ions and sulfur forms S²⁻ ions. What is the name and formula of their compound?

  1. APotassium sulfide, KS₂
  2. BPotassium sulfate, K₂SO₄
  3. CPotassium sulfite, KS
  4. DPotassium sulfide, K₂S
6.Sedang

What are isomers?

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

Why does a sodium ion (Na⁺) have almost the same mass as a sodium atom?

  1. AThe only difference is one electron, which has a tiny mass
  2. BThe ion gains a neutron that balances the loss
  3. CIons and atoms always have exactly the same mass
  4. DThe ion has one fewer proton, which has a tiny mass
8.Sulit

How does a rise in temperature affect how much carbon dioxide gas can dissolve in a soft drink?

  1. AThe gas turns into a solid at higher temperature
  2. BLess gas dissolves, so warm drinks go flat faster
  3. CTemperature has no effect on gas solubility
  4. DMore gas dissolves, so warm drinks stay fizzy for longer

Kunci jawaban

  1. 1. D · The temperature at which its solid turns into a liquid
  2. 2. A · Burning methane gas
  3. 3. D · The movement of water across a semipermeable membrane
  4. 4. C · The partial pressure of oxygen is higher in the alveoli than in the blood
  5. 5. D · Potassium sulfide, K₂S
  6. 6. B · Compounds with the same molecular formula but different structures
  7. 7. A · The only difference is one electron, which has a tiny mass
  8. 8. B · Less gas dissolves, so warm drinks go flat faster

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