the pH scale and neutralistion

• acids are neutralised by alkalis and bases to produce salts and water.
• acid + alkali -------> salt + water
• acids are neutralised by metal carbonates to produce a salt, water and carbon dioxide.
• acids produce H+ ions in solution.
• alkalis produce OH- ions in solution.
• if the pH is below 7 the substance is acidic.
• if the pH is above 7 the substance is alakline.
• if the pH is 7 the substance is neutral.