Cho 14,4g hỗn hợp X gồm Cu và CuO tác dụng vừa đủ vs 500ml dung dịch HCl 0,4M. Tính khối lượng của đồng trong hỗn hợp ban đầu.

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Conditional Sentence Type I : Câu điều kiện loại 1 Question I. Put the verbs in brackets into the correct form. (Chia những động từ trong ngoặc đơn vào đúng hình thức). 1.If we (recycle) ________ more, we will help the Earth. 2. Factories (not dump) ______________waste into rivers if the government fine them heavily. 3. If people travel to work by bus, there (be) ______________fewer car fumes. 4. We (save) ________________thousands of trees if we don’t waste paper. 5. If we use water carefully, more people (have) ______________fresh water. 6. If the factory (continue) ________________ dumping poison into the lake, all the fish and other aquatic animals will die. 7.If we recycle more, we (help) ________________ the Earth. 8. If people (travel)________________to work by bus, there will be fewer car fumes. 9. We save thousands of trees if we (not waste)_______________don’t waste paper. 10. Factories don’t dump waste into rivers if the government (fine) _______________ them heavily. Question II. Put the verbs in brackets into the correct form. (Chia những động từ trong ngoặc đơn vào đúng hình thức). 1. If he (study) ________________ harder, he can pass an exam. 2. She may be late if she (not hurry) ________________. 3.If you study harder, you (pass) ________________ the exam. 4. If you are kind to me, I (be) _______________ good to you. 5.If he (give) _______________ up smoking, as his doctor orders, he will be soon well again. 6. You (not pass) _______________ your driving test unless you drive more carefully. 7. He’ll be ill if he (not stop) ________________ worrying so much. 8. We’ll go to the beach tomorrow if it (be) ________________ nice. Conditional Sentence Type II : Câu điều kiện loại 2 Question III. Put the verbs in brackets into the correct form. (Chia những động từ trong ngoặc đơn vào đúng hình thức). 1. If I were you, I (look) ________________ for a new place to live. 2. If Lan wasn’t ill, she (join) ________________ out tree planting activity. 3.If there were fewer cars on the road, there (be) ________________ less pollution. 4.If people really cared about the environment, they (not dump) ________________ waste into the lake. 5.If there was no fresh water in the world, what (happen) ________________. 6.If you (be) ________________ the president, what would you do to help the environment ? 7.They get sick so often.If they exercised more, they (be) ________________ heathier. 8.If I (have) ________________ one million US dollars , I would build more parks in our city. 9.Quan’s mother is unhappy.If Quan tided his room every day, his mother (not be) __________ so upset. 10.There isn’t a garden at house .If there were, we (grow) ________________ vegetables. * giúp mình nha *