Lembaran kerja Kimia untuk peperiksaan kemasukan kejururawatan dengan jawapan

Bahan manakah ialah bes?

1. ACuka (asid asetik)
2. BJus lemon (asid sitrik)
3. CAsid hidroklorik (HCl)
4. DNatrium hidroksida (NaOH)

What does the octet rule state?

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

Which three elements make up carbohydrates?

1. ACarbon, hydrogen and oxygen
2. BHydrogen, nitrogen and phosphorus
3. CCarbon, nitrogen and sulfur
4. DCarbon, hydrogen and nitrogen

How does a catalyst speed up a reaction?

1. AIt raises the temperature of the reactants so they move faster
2. BIt makes the reaction more exothermic
3. CIt provides a different pathway with a lower activation energy
4. DIt adds extra reactant to the mixture

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

1. AZn²⁺
2. BCu²⁺
3. CCu
4. DZn

Bagaimanakah menaikkan suhu lazimnya menjejaskan kadar tindak balas?

1. AIa meningkatkan kadar
2. BIa tiada kesan pada kadar
3. CIa menghentikan tindak balas sepenuhnya
4. DIa mengurangkan kadar

Which list puts 0.1 M solutions of HCl, acetic acid (CH₃COOH) and NaCl in order of increasing pH?

1. ANaCl < CH₃COOH < HCl
2. BHCl < CH₃COOH < NaCl
3. CCH₃COOH < HCl < NaCl
4. DHCl < NaCl < CH₃COOH

A carboxylic acid reacts with an alcohol in the presence of an acid catalyst. What are the products?

1. AAn amino acid and carbon dioxide
2. BA salt and hydrogen
3. CAn ester and water
4. DAn alkane and oxygen