Chemical theories and laws
Review the permitted syllabus objectives and practice reviewed questions for this CSCA topic.
What to study
- atomic structure and periodic law
- chemical bonds and intermolecular forces
- reaction rate and chemical equilibrium
- electrolyte solution theory
The scope shown here follows the syllabus-derived guardrails used by the CSCAPrep question factory. Related advanced material is not added unless it appears in the defined scope.
Practice this topic
Standard · Chemical theories and laws对于反应N2(g) + 3H2(g) ⇌ 2NH3(g) ΔH < 0，下列哪种措施能使平衡向正反应方向移动？Standard · Chemical theories and laws某元素的原子序数为 17，其最外层电子数和在周期表中的位置分别是？Easy · Chemical theories and laws下列物质中，既含有离子键又含有共价键的是？Hard · Chemical theories and laws在醋酸溶液中存在电离平衡：CH3COOH ⇌ CH3COO− + H+。向该溶液中加入少量醋酸钠固体（忽略体积变化），下列叙述正确的是？Standard · Chemical theories and laws对于反应：2SO2(g) + O2(g) ⇌ 2SO3(g) ΔH < 0，下列哪种改变会使平衡向正反应方向移动？Standard · Chemical theories and laws在恒温恒容密闭容器中，发生反应：A(g) + 2B(g) ⇌ 2C(g)。起始时充入1 mol A和2 mol B，达到平衡时测得C的物质的量为1.2 mol。则A的转化率为多少？Easy · Chemical theories and laws在恒温恒容密闭容器中，发生反应：2A(g) + B(g) ⇌ 2C(g)。起始时充入2 mol A和1 mol B，达到平衡时测得C的物质的量为1.2 mol。则B的转化率为多少？Easy · Chemical theories and laws在恒温恒容密闭容器中，发生反应：2A(g) + B(g) ⇌ 2C(g)。起始时充入 2 mol A 和 1 mol B，达到平衡时测得 C 的物质的量为 1.2 mol。则 B 的转化率为多少？Easy · Chemical theories and laws在恒温恒容密闭容器中，发生反应：2A(g) + 3B(g) ⇌ 2C(g) + D(g)。起始时充入 4 mol A 和 6 mol B，达到平衡时测得 C 的物质的量为 2 mol。则 A 的转化率为多少？Easy · Chemical theories and laws在恒容密闭容器中发生反应：A(g) + 2B(g) ⇌ 2C(g)。起始时充入1 mol A和2 mol B，平衡时测得C的物质的量为1.0 mol。则A的转化率为多少？