Answer:
An acid is usually a corrosive liquid. The pH value of acids ranges from 1-6 (7 = a neutral). Acids neutralize alkalis, dissolve some metals, and turns litmus (a water soluble mixture used to test materials for acidity) red. Acid donates protons or hydrogen ions and/or accepts electrons. Most acids contain a hydrogen atom bond.
A base donates electrons, accepts protons from acids, or releases hydroxide ions in liquids. The pH value of bases ranges from 8-14. Base is any substance that is slippery to the touch in water, tastes bitter, turns red litmus paper blue, and reacts with acids to form salts, and stimulates certain chemical reactions (base catalysis).