GROUP WORK by binh cam binh https://padlet.com/cambinh1501/mfz5h4od93w8zisz Được tạo với cái ôm ấm áp en-us 2021-11-02 13:51:40 UTC 2021-11-04 08:35:49 UTC hello@padlet.com REACTION OF OXYGEN WITH IRON cambinh1501 https://padlet.com/cambinh1501/mfz5h4od93w8zisz/wish/1861718052 https://www.youtube.com/watch?v=UGABQrtm5p4

Watch the video and tell me:

1- What is the condition of this reaction?
             A. ambient temperature
             B. high  temperature
             C. very slow temperature

2- What color is the product?
             A. brown  
             B. yellow
             C. white

3- What is the product's name?
             A. iron (II) oxide: FeO  
             B. iron (III) oxide: Fe2O3
             C. ferromagnetic oxide: Fe3O4

4- Write chemical equation and balance it
             3Fe    +   2O2 → Fe3O4
Read:   Iron reacts with oxygen to form .................................

5- What is the oxidation number of oxygen in a product?
             A. 0  
             B. +1
             C. -2
             D. +2


]]> 2021-11-02 13:58:09 UTC https://padlet.com/cambinh1501/mfz5h4od93w8zisz/wish/1861718052 REACTION OF OXYGEN WITH SULFUR cambinh1501 https://padlet.com/cambinh1501/mfz5h4od93w8zisz/wish/1861726346 https://www.youtube.com/watch?v=gICDEFNOJyM

Watch the video and tell me:

1- What is the condition of this reaction?
             A. ambient temperature
             B. high  temperature
             C. very slow temperature

2- What color is the flame?
             A. brown  
             B. yellow
             C. white
             D. blue

3- What is the product's name?
             A. sulfur oxide: SO  
             B. sulfur dioxide: SO2
             C. sulfur trioxide: SO3 

4- Write chemical equation and balance it.
             S    +    O2 → SO2
Read:   Sulfur reacts with oxygen to form sulfur dioxide.

5- What is the oxidation number of oxygen in a product?
             A. 0  
             B. +1
             C. -2
             D. +2

]]> 2021-11-02 14:00:46 UTC https://padlet.com/cambinh1501/mfz5h4od93w8zisz/wish/1861726346 REACTION OF OXYGEN WITH ETHANOL cambinh1501 https://padlet.com/cambinh1501/mfz5h4od93w8zisz/wish/1861733155 https://www.youtube.com/watch?v=hqBqAqdfJLI

Watch the video and tell me:

1- What is the condition of this reaction?
             A. ambient temperature
             B. high  temperature
             C. very slow temperature

2- What are products of this reaction?
             A. water: H2O  
             B. carbon dioxide: CO2
             C. both A and B

3- Write chemical equation and balance it.
             C2H5OH     +    3 O2 →  2CO2 +3 H20
Read:   
       Ethanol reacts with oxygen to form cacbon dioxide and water.

4- Does ethanol burn in the air with or without smoke?
             A. with smoke.  
             B. without smoke. 
]]> 2021-11-02 14:02:51 UTC https://padlet.com/cambinh1501/mfz5h4od93w8zisz/wish/1861733155