.316 moles just divide by the molar mass of naoh which is 39.997. So 12.64 divived by 39.997 is .3160237. that is 3.16x10-1
Hey it isnt letting me submit my answer to your question on the Japanese chart, so imma just submit it here
Answer:
the third one, measured or observed without changing the identity and composition of matter. because physical property does not under go any change but can be put back.
The female part of the chromosomes, usually colored pink in diagrams