Yes, chinchillas are litter box trainable. Like most animals, they instinctively want to keep their toilet area separate from their eating and sleeping places. This means they readily learn to use an appropriate toileting area such as a litter box.
You have to clean the whelping box constantly. If you'd like you can clean it with diluted bleach products, but I strongly recommend the usage of products that are specifically...
Yes, chinchillas can learn their name, but the process will take time. You stand the best chance of success if you reward the chinchilla with a treat, so they associate...
You need to treat all the kittens at the same time for the infection. Be vigilant with cleaning the litter boxes. If you need to separate the kittens, do so....