Someone please answer this but only if you know the answer. I know it’s a lot of questions but if you know some then please tell me :)

Is anyone able to ? i am so confused. this sheet is about irregular preterit verbs and direct object pronouns in spanish.

Ineed with spanish homework. translation of task: 11. fill out with the correct form of estar or hay 12. fill in fill with the verbs hay, estar and ser.

Astudent requires 2.00 l of 0.100 m nh4no3 from a 1.75 m nh4no3 stock solution. what is the correct way to get thesolution? use m; v; = m. ve1o measure 114 ml of the 1.75 m solution, and dilute it to 1.00 l. measure 114 ml of the 1.75 m solution, and dilute it to 2.00 l. measure 8.75 ml of the 1.75 m solution, and dilute it to 2.00 l. o measure 8.75 ml of the 0.100 m solution, and dilute it to 2.00 l.