Which is an example of a free expansion of a gas? the expansion of a gas due to a chemical reaction among its particles the uncontrolled expansion of a gas into a vacuum the expansion of a gas as it performs work on its container the expansion of a gas as heat is transfered to it at constant pressure

Two cars collide, lock bumpers and move together after the collision.this collision is known as perfectly inelastic collision.

How is it possible that phylogenies based on sequences from nuclear genomes and organellar genomes (i.e., chloroplasts and mitochondria) from the same group of species yield phylogenetic trees with different branching orders?   answer :   the genome of the endosymbiont is more closely related to members of the group in which it originally evolved, while the nuclear genome of the engulfing organism has its own evolutionary trajectory.

From my calculation, i got 3.655moles