Second one looks like Kalanchoe blossfeldiana, which could use more/stronger light (the leaves are pointing down, rather than upwards with deeper shade of green).

It is very etiolated plant...all succulents (cacti are succulents too) need good drainage and good light exposure = that means lots of sunlight (hours a day) for most of them. If they do not have adequate light, they grow in shape very different than plant should have, with weak stems, often very pale color. All thin growth of your plant happened under poor light; it should be more-or-less same thickness as the thickest par, all over. In simple words - chubbier and shorter :)

Soil looks like it could be a problem, needs at least a 50% perlite and c/s mix combo for perfect drainage, plus another pot with holes in of course:-) Gill

Here are more photos