Question

Mr H2S Mr P2O5 Mr SO2 Mr ALF3 Mr PCI5 Mr PH3 Mr PCI5 Mr PH3 Mr CI2O7

Answer 1

Ответ:

mr(H2S)=2*1+32=34

mr(P2O5)=2*31+5*16=142

mr(SO2)=32+2*16=64

mr(AlF3)=27+3*19=84

mr(PCl5)=31+5*35.5=208.5

mr(PH3)=31+3*1=34

mr(Cl2O7)=2*35.5+7*16=183

Объяснение:

 

Answer 2

Ответ:

Mr (H2S)=1*2+32=34

Mr (P2O5)=31*2+16*5=142

Mr (SO2)=32+16*2=64

Mr( ALF3)=27+19*3=84

Mr (PCI5)=31+35,5*5=208,5

Mr (PH3)=31+1*3=34

Mr (PCI3)=31+35,5*3=137,5

Mr (CI2O7)=35,5*2+16*7=183

Объяснение:

Answer 3

It seems like you've listed a series of chemical compounds and their chemical formulas. Here's the information for each of them:

1. H2S - Hydrogen Sulfide: A colorless, poisonous gas with a distinctive rotten egg odor. It consists of two hydrogen atoms and one sulfur atom (H2S).

2. P2O5 - Phosphorus Pentoxide: A white, crystalline solid that is a powerful desiccant and dehydrating agent. It consists of two phosphorus atoms and five oxygen atoms (P4O10).

3. SO2 - Sulfur Dioxide: A colorless gas with a pungent odor. It consists of one sulfur atom and two oxygen atoms (SO2).

4. AlF3 - Aluminum Fluoride: A white crystalline compound. It consists of one aluminum atom and three fluorine atoms (AlF3).

5. PCl5 - Phosphorus Pentachloride: A yellowish-white solid or a yellowish-green gas. It consists of one phosphorus atom and five chlorine atoms (PCl5).

6. PH3 - Phosphine: A colorless, flammable gas with a foul odor. It consists of one phosphorus atom and three hydrogen atoms (PH3).

7. Cl2O7 - Dichlorine Heptoxide: A powerful oxidizing agent. It consists of two chlorine atoms and seven oxygen atoms (Cl2O7).

It appears that there are some repeated compounds in your list (PCI5 and PH3). If you have specific questions or need more information about any of these compounds, please feel free to ask.