Mahjong Mandarin vs Oxidation Numbers

Mahjong Mandarin builds the 500 most frequently used Chinese characters into a relaxing game of mahjong solitaire. Match open tiles and learn Mandarin as you play. Every time you select a tile, native Chinese speakers say the word aloud. The pinyin is written beneath each Simplified character, and the English meaning and its part of speech appear at the top of the screen. Characters are colored by tone, so you can see how a word should sound before you hear it. Each tile appears four times per level, giving you repeated chances to remember the character, its meaning and its pronunciation. Practice speaking while you play! There are over 47,000 Chinese characters, but the 500 most common ones cover about 75% of everyday reading. Mahjong Mandarin teaches all 500 across 14 levels. TRY EVERYTHING FREE FOR 7 DAYS Start the free trial and every level, mode, stage, soundtrack and tile set is unlocked for 7 days, with no charge and no automatic billing. After 7 days, a one-time purchase keeps the full game unlocked for good. FEATURES * 500 Mandarin words, each recorded by a native speaker * 500 Simplified Chinese characters with pinyin and English translations * Tone colors for every character * 14 levels, from the most common words up * 4 ways to play: Mahjong, Sprint, Pairs and Sweep * 10 living stages, from the Great Wall to a Sichuan panda valley * 10 music tracks and 8 tile sets * Chinese proverbs to reward each cleared board * Your game is saved, so you can pick up where you left off Learning Cantonese? Look for Mahjong Cantonese, also by TileSpeak.

Oxidation Numbers is a simple and powerful tool designed to help students and chemistry enthusiasts determine oxidation states بسرعة and accurately. Whether you're solving chemical equations, balancing reactions, or studying redox chemistry, this app makes it easy to find oxidation numbers for elements and compounds. Key Features: • Calculate oxidation states instantly • Supports common compounds and elements • Helpful for redox reactions and balancing equations • Clean and easy-to-use interface • Ideal for students, teachers, and chemistry learners • Useful for homework, exams, and quick reference Simplify chemistry concepts and improve your understanding with Oxidation Numbers.