A. Why do you need to mist them? Misting plants can cause problems as it causes the plants to look for nutrients through the leaves rather than through the roots.
B. Yes, you can mist them with plain old tap water, distilled water or with nutrients, but it depends totally upon what your goal is. You did not share said goal.
Misting with plain water will leech nutrients from your plants, misting a VERY light nutrient solution on your plants will allow a small amount of nutrients to be absorbed. Use a sticker like 'coco-wet' to help the mist 'stick' to the leaves, and doesn't just bead up and drip off. GL
SP