Small bumps on the tongue that contain taste buds are referred to as

Small bumps on the tounge that contain taste buds are called as PAPILLAE .They also ight be painful sometimes.They llok like mushroom on your tongue.Some how it is related to stress or harmones.

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