Chem Lab
Balance it, name it, test it
Balance chemical equations, identify an element from clues and put everyday substances on the pH scale. Every answer is checked against the atoms, the periodic table and real pH values. Three quick rounds every day.
Today’s challenge: choose a difficulty
- EasyWarm-up rounds · up to 10 XP eachPlay
- MediumThe classic · up to 15 XP eachPlay
- HardFor experts · up to 20 XP eachPlay
How to play
- 13 short rounds every day — one for each mode.
- 2Pick your answer and check it. Daily answers are checked on the server, so everyone plays fair.
- 3Read the explanation: every reveal shows the real numbers behind the trick.
- 4Come back tomorrow: a new challenge unlocks at midnight, Tashkent time. Keep your streak going!
Modes · 3 modes
Balance the equation
Put the right number in front of each substance.
Element detective
Find the mystery element from its clues.
pH ladder
Order substances from the most acidic to the most basic.
What you will learn
- Balance chemical equations with the smallest whole-number coefficients
- Find an element in the periodic table from its group, period and properties
- Tell acidic from basic everyday substances with the pH scale