She left without saying goodbye.

I’m back to school and I’m hungry

We protest to racism them.

You should wash the hands before eating and after go to WC

a,2Fe + O₂ \(\rightarrow\) 2Fe0

\(Fe_2O_3+HCL\rightarrow FeCl_3+H_2O\)

làm bài mấy

\(2H_2+0_2\rightarrow2H_20\)

\(nH_2=\frac{11,2}{22,4}=0,5mol\)

Theo PT và bài ra

\(nH_2=nH_2O\)

=> \(mH_2O=0,5.18=9g\)

C. CaO, CO2, Fe2O3, SO3

1.Wash your hands with soap carefull before eating
2.Tuan is a good friend of mine
3. Go straight ahead and take the third on the left.
4,Today, the weather is fine and sunny

II

1. The children are playing in the garden.
2.Minh often goes walking in the mountain.
3.Who does he usually go to ?
4.Mr.Minh is on the market.
5.My friends and I are waiting for the train.
6.Look at that man with a motorbike.