There are three different types of reactions that were made.
1. Reactants
2. Products
3. Chemical reaction
4. Rearranging
5. breaking old bonds, forming new bonds
6. Atoms
7. New,
8. rearrange
9. 2, 2, 1, 1
10. 2, 1, 2 H=4, O=2, H=2, O=1
11. Law of conservation of Mass
12. Cu and O atoms.
13. 2 Cu + 02 = 2 CuO.
14. Reactants: 1 Cu, 2 O- products: 2 Cu, 2 O.
15. CuO.
16. Cu, O2.
17. 2 Cu + 02 = 2CuO.
18. 1CH4 + 2O2 + 2H20+ 1CO2.
19. 1N2+ 3H2 = 2NH3.
20. 2KClO3 = 2KCl + 3O2.
21. 4Al + 3O2 = 2Al2O3.
1. Reactions and products.
2. the same atoms present before and after the reaction.
3. coefficients, atom
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