⇒ Because of the good employment prospects of computer science he chooses to study it.

Do morning exercises and you will be healthy.

→ If you do morning exercises, you will be healthy.

Why don't we get there by bus

→ How about getting there by bus ?

Nam is bad at English.

→ Nam studies English badly.

1. Miss Lien runs slowly.

2. She cooks well.

if you(go) go away, please write to me

if he(eat) eats another cake, he will be sick

if he (take)takes my advice, everything will go well

what will you(do) do if she refuses your invitation?

you(be)will be ill if you drink that water

if it is raining heavily, I (not go) won't go for a walk

if he(try) tries hard, he will pass the exam

if Hoa(call) calls home, she will tell her parents about the results

if you study harder, your parents(be) will be happier

2cm trên bản đồ tương ứng với số cm trên thực tế là:

\(2cm \times 200 000=400 000 (cm)\)

Đáp số: 400 000cm.

 - Thay từng giá trị vào, ta thấy A. \(\dfrac{15}{4}\) thỏa mãn.

- Nước vôi hóa đục, xuất hiện kết tủa.

PT: \(Ca(OH)_2+CO_2 → CaCO_3+H_2O\).

- Rồi bạn nhé, không hiểu sao chỗ bình luận nó lại không hiện công thức ?

PT: \(CaCO_3+2HCl→CaCl_2+H_2O+CO_2\)

\(n_{HCl_{dư}} = 4-0,1.2=3,8(mol) \Rightarrow m_{HCl_{dư}}=138,7 (g) \\ n_{CaCl_2}=0,1(mol) \Rightarrow m_{CaCl_2}=11,1(g) \\ m_{\text{chất tan}}=149,8 (g) \\ \Rightarrow C\%=\dfrac{149,8}{146+10} .100\%=96\%\).

- Làm sai mà sao anh Đạt vẫn tặng GP cho em thế anh ? :v