Раскрыть скобки заранее огомное ! 23 if i (not/have) a car accident yesterday, i (not/take) to hospital. 24 i (ask) monica out for a meal, if she (not/be) busy (prepare) for a test now. 25 if people (not/like) (scare), thousands of horror films (not/produce). 26 we (fail) the test unless/if we (study) hard for the whole weekend. 27 i (leave) you my phone number in case /if you (need) any help. 28 i wish i (go) to that conference. my boss (not/go on) at me now. 29 the burglar got in because you forgot (shut) the window. if you (not/leave) the ground floor window open for the night, your house /break into). 30 i wish i (have/ my teeth/ check) regularly in my childhood. 31 as long as you (work) six hours a day, you (get) this job (finish) on time. 32 ( i (know) about their anniversary, i (buy) some flowers. 33 supposing you (win) a trip to any place in the world you (go)? 34 if a passer-by (not/take) me out of that burning car, i (not/be) alive. 35 i (buy) an extra bottle of wine in case the stuarts (join) us for dinner. 36 i wish this thought (stop) (haunt) me! 37 if bill (practice) more, he (play) better at the concert last night. 38 i’m so sorry. i didn’t mean (upset) you. if i really (have) time yesterday, i (go) shopping with you with great pleasure. 39 if i (not/scrape) through the exam last summer, i (be) expelled from school.40 the milk (not/go) off, if you (remember/put) it in the fridge. 41 if you (not/miss) the last flight, you (not/have to) spend the night at the airport. 42 rosa was pleasant and easy to live with and she adored him, but michael knew if she (die) or away) he along) without her. he (find) someone else to do the things she did for him. 43 if joan (see) him (wave) a farewell to her, she (wave) him back, i’m sure. 44 i (not / oversleep) yesterday, if i (have) an early night the day before yesterday. 45 we (do) the sights of edinburgh if we (have) more time. but unfortunately the guide hurried us to get on the bus.
172
186
Ответы на вопрос:
1) соединения железа со с.о. +2 проявляют окислительные св-ва т.к. легко окисляются до +3 feso4 - восстановитель 2) соединения железа со с.о. +3 проявляют и окислительные, и восстановительные св-ва 3) феррат железа. в нем с.о. железа высшая - +6. значит ферраты - сильные окислители.
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