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Which of these is a chemical property?

1. ABoiling point
2. BFlammability
3. CColour
4. DDensity

What is an empirical formula?

1. AThe actual number of each atom in one molecule
2. BThe mass of one mole of a compound
3. CA drawing of how the atoms are bonded
4. DThe simplest whole-number ratio of atoms in a compound

Charles's law describes the relationship between which two properties of a gas, at constant pressure?

1. APressure and volume
2. BPressure and number of moles
3. CDensity and mass
4. DVolume and temperature

Apa yang dilakukan larutan penyangga (buffer)?

1. AMenjaga suhu larutan tetap konstan
2. BMengubah asam apa pun menjadi basa kuat
3. CMempercepat reaksi penetralan sehingga pH cepat mencapai tepat 7
4. DMenahan perubahan pH ketika sedikit asam atau basa ditambahkan

Sulfur has 16 electrons. In which period of the periodic table is it?

1. APeriod 3
2. BPeriod 6
3. CPeriod 16
4. DPeriod 2

Which equation shows a combustion reaction?

1. ANaOH + HCl → NaCl + H₂O
2. BC₂H₅OH + 3O₂ → 2CO₂ + 3H₂O
3. CZn + CuSO₄ → ZnSO₄ + Cu
4. DCaCO₃ → CaO + CO₂

Which element has the electron configuration 1s² 2s² 2p⁶ 3s² 3p⁵?

1. AArgon
2. BChlorine
3. CFluorine
4. DSulfur

Suatu zat meleleh pada 801 °C, tidak menghantarkan listrik sebagai padatan tetapi menghantarkan saat lebur. Zat jenis apa yang paling mungkin?

1. ALogam
2. BGas mulia
3. CZat kovalen sederhana (molekuler)
4. DSenyawa ionik