Amylase catalyzes the breakdown of carbohydrates and is present in saliva. pepsin is an enzyme that breaks
down proteins in the stomach. when amylase reaches the stomach it no longer functions. why?

Answer

Its because it works best in an alkali medium.. But the stomach is acidic therefore it stops its action..

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds

ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called