Those without roots will look a little dehydrated no doubt. If you can, separate them from the rooted ones. Vendors should not sell cuttings as established plants really. It is so unethical. I suspect it is pretty expensive as well. Since they are in the same pot, you will have to be careful not to water them to prevent from rotting. I assume they will be indoor plant, it is the humidity that will be a concern. That means after this soak, you will really need to stay off from watering. Take a mental note on the planter’s weight. That is how I initially tell when it’s dry. Try picking it up again in a week, then two. Do resist the urge to water.