Please help asap, I really need it! Classify the following chemical equations.

1. 2KClO3 → 2KCl + 3O2

2. HCl + NaOH → NaCl + H2O

3. Mg + 2HCl → MgCl2 + H2

4. 2H2 + O2 → 2H2O

5. 2Al + 3NiBr2 → 2AlBr3 + 3Ni6. 4Al + 3O2 → 2Al2O3

7. 2NaCl → 2Na + Cl2

8. CaCl2 + F2 → CaF2 + Cl2

9. AgNO3 + KCl → AgCl + KNO3

10. N2 + 3H2 → 2NH3 11. 2H2O2 → 2H2O + O2

12. (NH4)2SO4 + Ba(NO3)2 → BaSO4 + 2NH4NO3

13. MgI2 + Br2 → MgBr2 + I2

14. SO3 + H2O → H2SO415. 6KCl + Zn3(PO4)2 → 3ZnCl2 + 2K3PO4

qualitative observation deals with data that can be observed with our senses: sight, smell, touch, taste, and hearing. they do not involve measurements or numbers. for instance, colors, shapes, and textures of objects are all qualitative observations.

answer: atomic mass was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

explanation:

originally atomic mass was used to arrange elements on the periodic table from left to right in a row. each column then shows similar properties of elements of a group.

in modern periodic table, the atoms are arranged in increasing atomic number. as atomic number represents the number of protons in an atom which is unique for every atom.