viết các phương trình hóa học sau:

1, CH₄ + Cl₂

2, C₂H₂ + O₂

3, C₂H₂ + Br₂

4, CH₄ + H₂O

đốt cháy 0,224 lít khi metan thể tích khí thải ra ngoài không khí ở cùng điều kiện là

1. i wanted to see a doctor. she had helped my father2. a dog bit mark. it belonged to john3. he is an archited. he deigned the new city hospital4. laura is a teacher . she comes from london5. A building has now been rebuilt. It was destroyed in the fire 6.Mary sent a letter.It was very funny 7.The parents thanked the woman. she had saved herson8.I met an old lady she was one hundred and three years old9.Many people speak German, They love in Australia10. here's the book. you asked me to buy it for you

FeO + \(H_{2}SO4 -> FeSO_{4} + H_{2}O\)

rearrange the word to make sentences

1 she/earn/works/in order to/hard/a living

2 I/early/avoid/go/in order to/to traffic jams/work

3 we/local food/stop/in order to/for a while/enjoy

4 they/to/took/waste/the taxi/so/time/as/not

5 his english/in order to/he/to/went/school/practice