Phiếu bài tập Hóa học cho kỳ thi đầu vào điều dưỡng có đáp án

What does the rate of a reaction measure?

1. AHow quickly reactants are used up or products are formed
2. BHow much energy the final products contain
3. CHow hot the reaction gets
4. DHow much product forms in total by the end

In which state are most metals at room temperature?

1. ASolid
2. BLiquid
3. CGas
4. DPlasma

Standard atmospheric pressure (1 atm) is equal to how many millimetres of mercury?

1. A760 mmHg
2. B120 mmHg
3. C1000 mmHg
4. D100 mmHg

When two monomers join to form a larger molecule and a water molecule is released, what is the reaction called?

1. AHydrolysis (splitting with water)
2. BCombustion
3. CCondensation (dehydration synthesis)
4. DNeutralisation

Bạn pha loãng 100 mL dung dịch 2 M đến tổng thể tích 400 mL. Nồng độ mới là bao nhiêu?

1. A2 M
2. B8 M
3. C1 M
4. D0,5 M

When a nucleus emits an alpha particle, how do its mass number and atomic number change?

1. ANeither changes
2. BMass number falls by 4 and atomic number falls by 2
3. CMass number stays the same and atomic number rises by 1
4. DMass number falls by 2 and atomic number falls by 4

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

1. ANa⁺ and NO₃⁻
2. BNa⁺ and Cl⁻
3. CAg⁺ and NO₃⁻
4. DAg⁺ and Cl⁻

Trong phương trình N₂ + 3H₂ → 2NH₃, từ 1 mol N₂ với hydrogen dư có thể tạo ra bao nhiêu gam ammonia (17 g/mol)?

1. A51 g
2. B17 g
3. C28 g
4. D34 g