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.
malleability refers to metals which can be hammered into different shapes.   ductility refers to metals which can be drawn into wires.   Not all metals are malleable or â¦ ductile.Cast iron, for example, is quite hard but brittle. But metals that are malleable or ductile are so because of the way in which atoms are arranged.In a metal the atoms lie close together and, while they strongly attract one another, may be able to flow past each other whilst maintaining their proximity, and the metal's shape can be changed. Not all metals are malleable or â¦ ductile. Cast iron, for example, is quite hard but brittle. But metals that are malleable or ductile are so because of the way in which atoms are arranged.