science U1 L2(Element%26compound)Author: mohamed rehab Description: Keywords: , , , , , , online teaching
Content: Groups: 1. element (1-atom) 2. compound 3. element(2-atoms) 4. group_name4
Objects: 0. Water 1. Hydrogen Chloride 2. Ammonia 3. solid 4. Inert gases 5. Oxygen 6. Hydrogen 7. Mercury 8. Bromine 9. Nitrogen
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