Lembaran kerja Kimia untuk peperiksaan kemasukan kejururawatan dengan jawapan

Which of these is a polyatomic ion?

1. AOxide, O²⁻
2. BChloride, Cl⁻
3. CSulfate, SO₄²⁻
4. DSodium, Na⁺

Which property is typical of nonmetals?

1. AThey are poor conductors of heat and electricity
2. BThey are all solids at room temperature
3. CThey easily lose electrons to form positive ions
4. DThey are shiny and easily bent into wires

Klorin, bromin dan iodin ialah contoh kumpulan yang mana?

1. AHalogen
2. BLogam peralihan
3. CLogam alkali
4. DGas adi

In the reaction Zn + Cu²⁺ → Zn²⁺ + Cu, which species loses electrons?

1. AZn²⁺
2. BCu
3. CZn
4. DCu²⁺

Menurut teori kinetik molekul, apakah yang diukur oleh suhu?

1. ATenaga kinetik purata zarah
2. BJumlah bilangan zarah
3. CJisim setiap zarah
4. DSaiz bekas

Why is a carbon dioxide extinguisher effective on many fires?

1. ACO₂ adds oxygen to cool the flames
2. BCO₂ is a liquid that soaks into the fuel
3. CCO₂ is denser than air and pushes oxygen away from the fire
4. DCO₂ reacts chemically with the fuel to make it non-flammable

In the fission reaction ²³⁵U + ¹n → ¹⁴¹Ba + ⁹²Kr + ? ¹n, how many neutrons are released?

1. A4
2. B2
3. C3
4. D1

In the reaction NaCl(aq) + AgNO₃(aq) → AgCl(s) + NaNO₃(aq), which ions are spectator ions?

1. AAg⁺ and NO₃⁻
2. BAg⁺ and Cl⁻
3. CNa⁺ and Cl⁻
4. DNa⁺ and NO₃⁻