Answer:
Look in explanation
Explanation:
1. Litmus Paper (Red/Blue Litmus Paper)
2. Urine or Milk
3. Citric Acid
4. Water/ Human blood
5. Solution
6. Sodium Hyrdoxide
7. Drizzle, Rain, Sleet, Snow
8. Stomach Acid
9. Indicators
10. Neutralization
11. Baking Soda
12. Water
13. H+
14. opposites to acids
15. Ph Scale
16. Hydrogen Ions
17. Sea Water
18. Water
19. Aqueous
20. Potential of Hydrogen