According to the Pennsylvania Department of Conservation and Natural Resources (DCNR), changes in water's pH levels are caused by the dumping of certain chemicals into water systems. Dumping may be done by communities, industries or individuals.
A:Stomach acid breaks down food so that it is more easily absorbed by the body, according to MedicineNet. Muscles in the wall of the stomach churn the food, stomach acid and enzymes together to create a thick liquid, known as chyme, that moves into the small intestine for further digestion.
A:An acid is a substance that donates a proton, and a base is a substance that accepts a proton. A base is a chemical compound that forms OH- ions when dissolved in water and reacts with acids to form salts. An acid is a chemical compound that forms H+ ions when dissolved in water and reacts with bases to form salts.
A:Depending on the chemicals in the soil, the pH of water passing through it increases, decreases or remain the same. In areas where water passes through soil containing limestone, dissolving the calcium carbonate in water creates a buffer solution, tying up the hydrogen or hydroxyl ions in the water so the pH becomes less likely to change.
A:Acids and bases differ in chemical structure and reactions, pH level and taste. When interacting with phenolphthalein and litmus, each changes to a different color. Substances with a pH greater than seven are basic and those with a pH less than seven are acidic. Acidic substances taste sour, while basic substances are bitter.
A:Pure rayon shrinks when washed or dried if it has not been pretreated when manufactured. Rayon is a delicate fabric that was originally designed as a dry clean only material. Blended rayon with a 30 percent or more ratio of polyester is normally safe in the washer or dryer.
A:Acids are used in industries to manufacture fertilizers, paints, dyes and man-made fibers, while bases are used in the production of fabrics, cleaning agents and paper. In nutrition, diluted acids are used to dress salads and vegetables, giving food a distinctive taste. For example, vinegar contains 3 percent acetic acid. Citrus fruits have citric acid. Aspirin contains acetylsalicylic acid, and wine has tartaric acid.
A:Acetone (C3H6O) has a pH of 7, which means that the substance, on its own, is neither an acid nor a base. This pH value, which is about the same as pure water, shows that acetone is relatively neutral. The organic compound is also known by the IUPAC name of propanone.
A:There are numerous different kinds of acidic substances, like battery acid, concentrated sulfuric acid and lemon juice. These substances all have their own values of acidity, however, which is measured using the pH scale.
A:Mixing a base with an acid results in a chemical reaction called neutralization. The result is a perfectly balanced solution of salt and water with a pH of 7 if the acid and base are balanced properly. Depending on the bases and acids used, it can be a dangerous experiment.
A:A solvent is the substance into which another substance dissolves to form a solution. It is the largest part of the solution. Its counterpart, the solute, is the part that dissolves within the solvent.
A:Depending on dietary and health factors, saliva can be an acid, a base or neutral. If the body operates within a normal range, the pH level of saliva stays between 6.5 and 6.8, which makes it slightly acidic.
A:Hydrogen cyanide, or HCN, is not a strong acid. In solution, hydrogen cyanide is a weak acid that is mostly HCN with minimal amounts of hydronium and cyanide ionized. A weak acid partially ionizes in solution. The solution moves backwards and forwards to create the products and reactants.
A:The pH level of lemon juice is about 2.0. Anything below 7 for pH levels means that it is an acid. Lemon juice is a strong acid. Lemons are strong in acidity because they are made of citrus juice and ascorbic acid.
A:When blue litmus paper is dipped in an acid, it turns red; when red litmus paper is dipped in an acid, it just appears to get wet. Alkacid paper, which is a universal indicator, turns orange or red when it is reacting to an acid, with a redder color indicating a lower pH and a stronger level of acidity.
A:Bleach has a pH value of around 12 or 13. The pH scale is used as a measure of the acidity or basicity of solutions in which the solvent is water. Solutions with a pH value of 7 or less are acidic, while those above this number are basic.
A:Copper is a pliable metal with high thermal and electrical conductivity capabilities. It can be identified on the periodic table of elements as Cu and as atomic number 29. Copper and its alloys have been used for thousands of years for various purposes.
A:The pH of hydrochloric acid is 0. This reading is taken from a solution of 1 mole of hydrochloric acid. A less concentrated solution of the acid, such as a 0.5-mole solution, has a higher pH, meaning it would be less acidic.
A:Common household alkalis include indigestion tablets (antacids), bleach, toothpaste, baking powder, cream cleaner, oven cleaner, metal polish and alkaline batteries. They can have moderate to severe levels of toxicity.