Classify acids, bases, and salts worksheet with chemical equations and reaction diagrams.

To solve this worksheet, we need to classify each chemical compound as an acid, a base, or a salt.

Here is the simple rule to remember:
* Acids: Usually start with Hydrogen (H) at the beginning of the formula (e.g., HCl).
* Bases: Usually end with a hydroxide group (OH) at the end of the formula (e.g., NaOH).
* Salts: These are made of a positive ion (metal or ammonium) and a negative ion (non-metal), but they don't start with H or end with OH.

Let's go through the list:

1. KCl: Potassium (K) and Chlorine (Cl). No H at start, no OH at end. -> Salt
2. HF: Starts with H. -> Acid
3. HCl: Starts with H. -> Acid
4. KOH: Ends with OH. -> Base
5. FeBr3: Iron (Fe) and Bromine (Br). No H start, no OH end. -> Salt
6. NaNO3: Sodium (Na) and Nitrate (NO3). -> Salt
7. HNO3: Starts with H. -> Acid
8. NaCl: Sodium (Na) and Chlorine (Cl). -> Salt
9. CaCl2: Calcium (Ca) and Chlorine (Cl). -> Salt
10. NH4Cl: Ammonium (NH4) and Chlorine (Cl). -> Salt
11. NaOH: Ends with OH. -> Base
12. Na2SO4: Sodium (Na) and Sulfate (SO4). -> Salt
13. Mg(OH)2: Ends with OH. -> Base
14. H3PO4: Starts with H. -> Acid
15. HC2H3O2: Starts with H (Acetic Acid). -> Acid
16. CuCl2: Copper (Cu) and Chlorine (Cl). -> Salt
17. H2SO4: Starts with H. -> Acid
18. Ca(OH)2: Ends with OH. -> Base
19. H2CO3: Starts with H. -> Acid
20. NH4OH: Ends with OH (Ammonium Hydroxide). -> Base
21. Al(NO3)3: Aluminum (Al) and Nitrate (NO3). -> Salt
22. HNO2: Starts with H. -> Acid
23. H2S: Starts with H. -> Acid
24. HBr: Starts with H. -> Acid
25. Ba(OH)2: Ends with OH. -> Base

Now for the boxed items on the right:
26. NaHCO3: Sodium (Na) and Bicarbonate (HCO3). It has Hydrogen inside, but it starts with a Metal (Sodium) and doesn't end in OH. -> Salt
27. H2SO4: Starts with H. -> Acid
28. NaHCO3: Same as #26. -> Salt

Final Answer:
1. Salt
2. Acid
3. Acid
4. Base
5. Salt
6. Salt
7. Acid
8. Salt
9. Salt
10. Salt
11. Base
12. Salt
13. Base
14. Acid
15. Acid
16. Salt
17. Acid
18. Base
19. Acid
20. Base
21. Salt
22. Acid
23. Acid
24. Acid
25. Base
26. Salt
27. Acid
28. Salt