k2o2, kf, naoh, na2so4.
ионная крс. решетка- крист. решетка, в узлах которой находятся ионы. крист. решетки имеют соли, основания(щелочи), некоторые оксиды.
1)what time will you have finished painting your room? I will have finished by o’cklock tomorrow, I hope.
2)By the time Julia arrives I will have left the house.
3)They won’t have built the house until the end of May.
4)I won’t have done my homework until Friday.
5)She will have saved enough money to buy a car by Christmas.
6)We will have done cooking by the time the guests arrive.
7)I will have passed my exams by the end of August.
8)They will have made a decision by Friday.
9)She will have come back by July.
10)I won’t have read a book until tomorrow afternoon.
k202,kf, naoh,na2so4
ионная кристаллическая решетка – это структура с правильным расположением ионов в пространстве.
nacl,koh,naoh,сscl