How Do Marks and Curses Interact with Hand of Chayula in PoE 2?

Hey everyone,

I'm trying to understand how Marks and Curses interact when using Hand of Chayula in PoE 2. My setup includes:

Hand of Chayula (splits my attack into six hits)
Sniper’s Mark
Freezing Mark
Conductivity (Curse)
Hypothermia (Curse)
My questions:

When I hit a boss with Hand of Chayula, will all of these apply at the same time, or does only one Mark and one Curse apply per hit?
Do I need to hit the boss twice for all effects to be active in the same second?
If I have room for two Curses (via Whispers of Doom or another method), will both Conductivity and Hypothermia apply together, or is one randomly chosen?
How does the game decide which Mark applies first when using two? Would the last one cast override the first?
Would love to hear from anyone who has tested this or understands the mechanics in PoE 2! Thanks in advance. 🙌