cô làm giúp em ạ

C.ơn ạ

1. "Go and buy some meat. I will prepare everything at home" I said to her.

I told her to go and buy some mear and I would prepare everything at home

2. "Where are you going? Do you stop by the office?" She asked him.

She asked him where he was going and if he stopped by the office

3. "I met her yesterday. She was looking at the flowers". He said to me.

He told me he had met her the day before when she had been looking at the flowers

4. "Please tell me the way to the market! I've lost my way. Is it far?" She said to him.

She told him to tell her the way to the market because she had lost her way, she also asked if it was far

5. "What will you do when you go to the city? Remember to write to me!" nam said to Hoa. 

Nam asked Hoa what she would do when she went to the city and remind her to write to him

6. "What's the matter with you?" She said.

She asked me what the matter with me was

7. "Tomorrow, I'm going to your house. Do you stay at home? Don't go out!" He said to her.

He told her that the day after he was going to her house and asked if she stayed at home, and told her not to go out

8. I've just visited our teacher. Do you visit him. He was badly ill." Lan said to Nam.

Lan told Nam that she had just visited her teacher and asked him if he visited him because he had been badly ill

9. "I came yesterday. I'm staying with your friend. Are you free tonight?" I said to Peter.

I told Peter I had come the day before and I was staying with his friend, I asked him if he was free that night

10. "Where do you go tomorrow? I will go to your house. Wait for me!" She said.

She asked me where I went the day after and told me to wait for her because she would go to my house

Because the sea was rough, the ferry couldn't sail

nH₂ = 0,6 mol
a) pt:     2Al +6HCl=2AlCl₂+3H₂
b) nAl = 0,6 . 2 : 3=0,4mol
m=mAl=0,4 . 27=10,8g
c) nHCl=0,6 . 6 : 3=1,2 mol
mHCl=1,2 . 36,5=43,8g
d) nAlCl3=nAl=0,4
mAlCl3=0,4 . 133,5=53,4g
 

mùa hè đã về

Mùa hè của em

Bao điều mới mẻ

Nghỉ hè vui vẻ

mùa hè của em!

tick nha

thơ 6 hoặc 7 chữ mà, có mảy thơ 4 chữ đâu

Có gợi ý gì không em

Ta có: P + N + E = 28

Mà: P = E (do nguyên tử trung hòa về điện)

⇒ 2P + N = 28 (1)

- Trong đó số hạt không mang điện chiếm 35%

⇒ N = 28.35% (2)

Từ (1) và (2) ⇒ P = E = 9

→ Nguyên tố cần tìm là F.