Explanation:
The substance A and B will mix into one solution as it is a solvent interactions which is greater than or equal to the solute- solute and the solvent-solvent interactions. Thus when such interactions occurs, it is greater or equal to the some of the other two possible interactions. And here both have the same kind of interaction, and same magnitude, so they will makes to form a solution and mixes properly and spontaneously.
The first person to organize the periodic table was chemist Dimitri Mendeleiv. He ordered the elements by mass number and organized them in columns and rows. These columns and rows shared similar characteristics both fisical and chemical. Back then there were only 60 or so discovered elements of the 118 that exist today. Mendeleiv left some blank spaces in between elements, predicting that future scientists would find elements to fill this spaces and these would have similar characteristics as the one around it. both of these predictions were right. However, he admitted that his method or organization may be wrong for he could have calculated the mass number incorrectly. Then another scientist named Henry Moseley found that he could reorganize the table by the atomic number and still be able to group elements by their characteristics.
I hope that answers your question!
Answer:
Reaction type: Single displacement
Reactant: Magnesium
Product: Dihydrogen - H2
Answer: 58.305torr
Explanation:
We shall solve this using Raoult law.
Mathematical expression is;
Ptotal=XaPa + XbPb
Where Xa, Xb and Pa Pb are the mole fraction and vapor pressure of each component. we shall now solve this by steps
STEP1: Find the mole of benzene and Toluene;
Mole= mass÷molar mass
For toluene:
Mass= 398g
Molar mass= 92.1g/mol
Mole= 398÷92.1 =4.32mol
For benzene:
Mass=734g
Molar mass= 78.1g/mol
Mole= 734÷78.1 = 9.398mol
STEP2: Find the mole fraction of each component:
Let Xb be mole fraction for benzene
Let Xt be mole fraction for toluene.
Therefore; nB+nT = X
nB and nT are the mole of component B and T
X= 4.32+9.398= 13.718
Mole fraction for Toluene;
Xt= nT÷X
4.32÷13.718= 0.315
Mole fraction for benzene;
Xb= nB÷X
9.398÷13.718= 0.685
STEP3: Find the total total pressure;
We will use Rauolt law.
Ptotal= XbPb + XtPt
Pt = 22torr
Pb = 75torr
Therefore Ptotal is;
(0.315×22) + (0.685×75) = 6.93+51.375= 58.305
Therefore the total pressure is 58.305torr
To separate hydrogen and oxygen from water you would have to perform B. decomposition (specifically, electrolytic decomposition!)
Hope this helps :)