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.
These new substances have very different properties than the. original piece of wood had. Wood has the chemical property. of flammability. Flammability is the ability of a substance to. burn. Ash and smoke cannot burn, so they have the chemical. property of nonflammability. Another chemical property is reactivity. Reactivity is the. ability of two or more substances to combine and form one. or more new substances.