When there is food in the stomach the pH can raise to as high as 4-5. After the food leaves the stomach bicarbonate ions are secreted to neutralize and alkalinize the mixture. The pH of the small intestine is approximately 8. As far as how long food stays in your stomach it depends on what that food is.
Rating Newest Oldest. Best Answer: B Malleability A chemical property is one you can observe during a chemical reaction. Malleability really has nothing to do with chemical reactions, and afterwards you still have the same substance, nothing is chemically changed. Source(s): Col. S Â· 7 years ago.
Flammability is a chemical property. PM Images, Getty Images. Chemical Property Definition: A chemical property is a property or behavior of a substance when it undergoes a chemical change or reaction. Examples: Chemical properties of a substance can include toxicity, oxidation, and flammability. Iron oxidizes and becomes rust.