Answer:
1. A Serpent never shows cowardice.
2. No Serpent stands alone (both have been claimed as the first law at different points).
3. If a Serpent is killed or imprisoned, their family will be taken care of.
4. A Serpent never sheds its skin (its unclear if this is an actual law or just an expectation).
5. No Serpent left for dead (might be the same law as the second one, just said differently).
6. A Serpent Never Betrays his own.
7. In Unity, there is strength(that we know is the last one) .