Напишите, к какому типу относятся предложения (имеются в виду условные придаточные

Напишите, к какому типу относятся предложения (имеются в виду условные придаточные предложения):
1) If these solids were removed by filter-ing, the filtrate would have a pale blue tint.
2) If a tin or iron vessel were cooled by liquid air, it would be become so brittle that it could be crushed with the fingers.
3) If the liquid air were in a tea kettle standing on a block of ice, the liquid air would boil vigorously.