Answer:
LiCl because the total negative charge on Cl is one. (Option 1)
Explanation:
Lithium (Li) is part of group 1. This means it has 1 valence electron. This can be represented as Li+. Lithium has a positive charge of 1.
Chlorine (Cl) is part of group 17. This means it has 7 valence electrons. It needs 1 electron to get the stable noble gas configuration. This can be represented as Cl-. Chlorine has a (negative) charge of -1.
Li+ + Cl- → LiCl
The total charge on LiCl is zero.
This means the first option is correct : LiCl because the total negative charge on Cl is one.
1) C !! Physical Process
2) A
3) D !! Water is universal solvent !
if you need any explanation ; comment !!
Answer:
y = 35.06 %.
Explanation:
The reaction of fermentation is:
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂ (1)
From the reaction (1) we have that 1 mol of C₆H₁₂O₆ produces 2 moles of C₂H₅OH, then the number of moles of C₂H₅OH is:
Now, we need to find the mass of C₂H₅OH:
Finally, the percent yield of C₂H₅OH is:
Therefore, the percent yield of C₂H₅OH is 35.06 %.
I hope it helps you!
Hello!
The dissociation reaction for Benzoic Acid is the following:
C₆H₅COOH + H₂O ⇄ C₆H₅COO⁻ + H₃O⁺
The Ka expression is the following and we clear for the concentration of H₃O⁺(X) assuming that the dissociation is little so we can rule it out in the denominator of the equation:
So, the pH of this Benzoic Acid solution is
2,29Have a nice day!
Answer:
+2
Explanation:
If a compound existed, we would identify the oxidation state of sulfur using the following logic:
- oxygen is more electronegative than sulfur, so it's more electron-withdrawing and it should have a negative oxidation state producing a positive oxidation state for sulfur;
- oxygen typically has an oxidation state of -2;
- we may then apply the fact that SO is expected to be a molecule with a net charge of 0;
- if the net charge is 0 and the oxidation state of oxygen is -2, we may set the oxidation state of S to x;
- write the equation for the net charge of 0 by adding all individual charges of the two atoms: ;
- hence, x = 2.
That said, in this hypothetical compound S would have an oxidation state of +2.