Khi đốt nóng, 1g Magie (Mg) kết hợp được với 2,96g Clo (Cl) tạo ra hợp chất Magie clorua. Tìm công thức hóa học của Magie clorua biết phân tử của hợp chất chỉ có một nguyên tử Magie
Mấy bạn giải xong ghi giùm mình công thức để tính bài này mình cảm ơn
(CONDITIONAL SENTENCES)
Exercise 1: Put the verbs in brackets into the correct form:
If I see him , I _____ (give ) him a gift. If I had a typewriter, I _____ (type) it myself. If I had known that you were in hospital, I _____ (visit) you. You could make better progress if you _____ (attend) class regularly. If I _____ (know) his telephone number, I’d give it to you. If you _____ (arrive) ten minutes earlier, you would have got a seat. If he worked more slowly, he _____ (not make) so many mistakes. I shouldn’t drink that wine if I _____ (be) you. If I _____ (find) a cheap room, I will stay a fortnight. A lot of people _____ (be) out of work if the factory closed down.Exercise 2: Make conditional sentences:
Keep silent or you’ll wake the baby up. →If ……………………………………………..…..……… Stop talking or you won’t understand the lesson.→ If …………………………………….....….……. I don’t know her number, so I don’t ring her up.→ If …………………………………….....….…….. I don’t know the answer, so I can’t tell you.→ If …………………………………………….……….. We got lost because we didn’t have a map.→ If …………………………………….……..…….…… Susan felt sick because she ate four cream cakes. →……………………………………………..…… Without this treatment, the patient would have died. →……………………………………….….…... He lost his job because he was late every day. →………………………………………………...…… Peter is fat because he eats so many chips. →……………………………………………………...….. Robert got a bad cough because he started smoking cigarettes. →………………………………..…..