Back to Course Grade 8 Chemistry - Unit 3: Some important non-metals 0% Complete 0/0 Steps Carbon | ካርበን Nitrogen and phosphorus | ናይትሮጅን እና ፎስፈረስ Sulphur and Oxygen | ሳልፈር እና ኦክስጅን Uses of some common compounds of non-metals | አንዳንድ ብረታማ ያልሆኑ ዉህዶች ጠቀሜታ Lesson 3 of 4 In Progress ← Previous Sulphur and Oxygen | ሳልፈር እና ኦክስጅን