护理入学考试化学练习卷（附答案）

钠和钾属于哪一族？

1. A碱金属（第 1 族）
2. B碱土金属（第 2 族）
3. C稀有气体（第 18 族）
4. D卤素（第 17 族）

What does the rule "like dissolves like" mean?

1. AOnly substances with identical formulas can ever dissolve in each other
2. BSolids dissolve only in other solids
3. CPolar solvents dissolve polar substances, and nonpolar solvents dissolve nonpolar ones
4. DEvery substance dissolves in water

化学中的摩尔是什么？

1. A一升任何气体的体积
2. B按标度恰好一个碳-12 原子的克数质量
3. C含有 6.02 × 10²³ 个粒子的物质的量
4. D原子中的质子数

What is nuclear fission?

1. AThe splitting of a heavy nucleus into smaller nuclei
2. BThe joining of two light nuclei to form a heavier nucleus
3. CThe burning of uranium in oxygen
4. DThe loss of electrons from an atom

A student tests how temperature affects the rate of a reaction. What is the independent variable?

1. AThe volume of acid, which is kept the same
2. BThe reaction rate
3. CThe type of beaker used
4. DThe temperature

由 Al³⁺ 和 O²⁻ 离子构成的氧化铝，其化学式是什么？

1. AAlO₃
2. BAl₃O₂
3. CAlO
4. DAl₂O₃

What is (8 × 10⁶) ÷ (2 × 10⁻²)?

1. A4 × 10⁴
2. B16 × 10⁴
3. C4 × 10⁸
4. D4 × 10⁻¹²

A compound is a gas at room temperature, does not conduct electricity in any state, and is made of two nonmetals. What kind of substance is it most likely?

1. AA simple molecular (covalent) substance
2. BA giant covalent network solid
3. CAn ionic compound (a lattice of ions)
4. DA metal with delocalised electrons