Hello i had ordered a saree of rs 621 on 6th january 2018 from mirraw.com. My order no is 17419 and product ss56. I got my order on 13th january and it is entirely different from what i had ordered. So i returned back the product through professional courier with tracking number knp[protected] and it is already delivered to them.
Click for larger image. Acid and Base Indicators. Acid-Base Indicators: The most common method to get an idea about the pH of solution is to use an acid base indicator. An indicator is a large organic molecule that works somewhat like a  color dye. Whereas most dyes do not change color with the amount of acid or base present, there are many molecules, known as acid-base indicators, which do respond to a change in the hydrogen ion concentration.
acid-base balance, a condition existing when the net rate at which the body produces acids or bases equals the net rate at which acids or bases are excreted. The result of acid-base balance is a stable concentration of hydrogen ions in body fluids.See also acid, base. state of equilibrium between acidity and alkalinity of the body fluids. An acid is a substance capable of giving up a hydrogen ion during a chemical exchange, and a base is a substance that can accept it.