What is the total number of moles present in 256.0g sample NaNCO3(s)

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here

Chromosome 17 is made of over million base pairs.

How do i turn 2 s into one in the products