cacbon+nito=?
giúp mình nhé , cảm ơn
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\(d_{\dfrac{N}{C}}=\dfrac{M_N}{M_C}=\dfrac{14}{12}=\dfrac{7}{6}\left(lần\right)\)
1 đơn vị cacbon hay ghi tắt là 1đ.v.c bằng:
(1,9926.10-23)/12 (g)
số nguyên tử Oxi là : \(\frac{16}{0,166.10^{-23}}\approx96.10^{23}\) nguyên tử
số nguyên tử Al là :\(\frac{5,4}{0,166.10^{-23}}\approx33.10^{23}\) nguyên tử
số nguyên tử N là : \(\frac{35}{0,166.10^{-23}}\approx217.10^{23}\) nguyên tử
Những hợp chất có liên quan đến Cacbon là : CO, CO2, CH4,....
1 Show me the new hats which you bought last night
2 That is a company which produces diamond rings
3 My best friend who sings folk songs very well can compose songs
4 Zoe bought a new phone which is quite expensive yesterday
5 The man whom you met last week is her father
6 Zoe likes the blue T-shirt which she is wearing
7 Zoe has a sister whose name is Juma
8 The children were attracted by the show in which there were so many famous people
9 Tet is a festival that often happens in late January or early February
10 Jack is the boy who gave my mom a gift
1. Show me the new hats which you bought last night.
2. That is a company which produces diamond rings.
3. My best friend, who sings folk songs very well, can compose a song.
4. Zoe bough a new phone yesterday, which is expensive.
5. The man who you met last week is her father.
6. Zoe like the blue t-shirt which my sister is wearing.
7. Zoe has a sister whose name is Juma.
8. The children were attracted by the show which there were so many famous people.
9. Tet is a festival which often happens in late January or early February.
10. Jack is the boy who gave my mom a gift.
hyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyydjyh
hazai