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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
.