Đáp án+Giải thích các bước giải:
`text{Cân bằng PTHH}text`
`2Na + 2H2O -> 2NaOH + H2`
`text{Natri + Nước → Natri Hiđroxit + Triti}text`
`text{Loại phản ứng : phản ứng đơn ( thể )}text`
$@chienbinhkieuhanh$
Đáp án: 2Na + 2H2O -> H2 + 2NaOH
phân tích đa thức sau thành nhân tử mn giúp mik với huhu
giúp mình với ai xong trước mình vote cho 5 sao
giúp em đi ạ hứa trả đủ tại em hết điểm rồi với lại em còn phải hỏi nhiều bài khác nữa
ãy đọc và điền mạo từ thích hợp “a/an/ the hoặc x (không cần mạo từ)” vào chỗ trống: 1. There was ________knock on ________door. I opened it and found ________small dark man in ________blue overcoat and _______woolen cap. 2. He said he was ________employee of ________gas company and had come to read ________meter. 3. But I had ________suspicion that he wasn't speaking ________truth because ________meter readers usually wear ________peaked caps. 4. However, I took him to ________ meter, which is in ________dark corner under ________ stairs. 5. I asked if he had ________ torch; he said he disliked torches and always read ________ meters by ________light of ________match. 6. I remarked that if there was ________leak in ________ gas pipe there might be ________ explosion while he was reading ________meter. 7. He said, “As ________matter of ________fact, there was ________explosion in ________last house I visited; and Mr. Smith, ________owner of ________house, was burnt in ________face.” 8. “Mr. Smith was holding ________lighted match at ________time of ________explosion.” 9. To prevent ________possible repetition of this accident, I lent him ________torch. 10. He switched on ________torch, read ________meter and wrote ________ reading down on ________back of ________envelope. 11. I said in ________surprise that ________meter readers usually put ________readings down in ________book. 12. He said that he had had ________book but that it had been burnt in ________fire in________ Mr. Smith's house. 13. By this time I had come to ________conclusion that he wasn't ________genuine meter reader; and ________moment he left ________house I rang ________police.
GIÚP :>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Viết x $x^{3}$ + 8 dưới dạng tích Viết (x+1) (x $x^{2}$ - x + 1 dưới dạng tổng.
vẽ Anime buồn và khóc NL:sinh nhật tôi.........ko như tôi nghĩ ;-;
mn giúp e ạ e cảm ơn nhanh nha mn
Viết các từ trong ngoặc đơn, cộng thêm đuôi "ly, ing, ed" nếu cần:
Giúp mình với mình cần gấp lắm ạ please!!
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