Prep50 Logo
Prep50
JAMB / WAEC

Chemistry Explanations

Find detailed step-by-step solutions for all Chemistry past questions.

Study Topics

Select a topic to view its question explanations

Filter by exam
01Separation of Mixtures
02Chemical Combination
03Kinetic Theory of Matter & Gas Law
04Atomic Structure and Bonding
05Air
06Water
07Solubility
08environmental pollution
09Acid, Base and Salt
10Oxidation and Reduction
11Electrolysis
12Energy changes
13Rate of Chemical Reaction
14Chemical equilibra
15Non-metals and their compounds
16Metals and their compounds
17Organic Compounds
18Chemical Industry
19Environmental Pollution
20Acids, Base and Salt
21Chemical Reaction
22Chemical Equilibrium
23Non-metals And Their Compounds
24Metals And Their Compounds
25Unsorted
26Particulate Nature Of Matter
27Mass-volume Relationship
28States Of Matter
29Gas Laws
30Bonding
31Periodic Table
32Electronic Configuration
33Organic Chemistry
34Petroleum
35Nuclear Chemistry
36Acid/Base Titrations
37PH And POH Scale
38Constituents of the Atom
39Symbols, Formulae and Equations
40Law of Conservation of Matter
41Types of Bonds
42Weak Bond
43Carbon & its Compounds
44Families of Elements
45Change in Size (Atomic Radii/Ionic Radii)
46Hardness of Water
47Hydrogen
48Alkali Metals
49Alkaline-Earth Metals
50Aluminium and Tin
51Transition Metals
52Cracking and Reforming
53Acid-Base Titration
54Quantitative and Qualitative Analysis
55Iron
56Ammonia
57Ideal Gas Equation
58Standard Separation Techniques
59Separation Techniques
60JAMB Separation of Mixtures
61Chemical Industry
62Separation of Mixtures
63Chemical Combination
64State of Matter & Kinetic Theory of Matter
65Solubility
66The Periodic Table
67Air
68Water
69Oxidation and Reduction
70Electrolysis
71Chemical Reactions
72Hydrocarbons
73Amines
74Carbohydrates