Most ceramics are opaque, whereas porcelains often have a translucent appearance. What could explain the translucent properties of many porcelain materials

Materials employed in Making porcelain are feldspar, quartz, and kaolin. They're glass-like and translucent and fired at high temps.

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.

< > according to newton's third law of motion, forces always act in equal but opposite pairs. another way of saying this is for every action, there is an equal but opposite reaction.< >