A 0.3 L sample of gas under constant pressure had its temperature increased to 224 K. This increased the volume to 1.4 L. What was the initial temperature?

Which of the following structures is not found in both plant and animal cells? a) chloroplast b) cytoskeleton c) ribosomes d) mitochondria

Will someone me with this.. specialized cells which perform a particular function form: tissues organs or organism

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point