Answer:
Explanation:
Here, we wnat to get the most electronegative atom
On the periodic table, electronegativity increases across a period and decrease down the group
The elements listed are in the same group
Boron is the first member of the group
Boron is the most electronegative atom in the group
The answer
first of all, we should know that NaOH is a strong base. For such a product, the conentration of the OH - is equivalent to the concentration of the NaOH itself.
that means:
[ OH -] = [ NaOH] =<span>0.001 62
and for a strong basis, pH can be calculated as pH = 14 + log </span>[ OH -]
first we compute log [ OH -] :
log [ OH -] = log (0.001 62)= -2.79
finally pH = 14 -2.79 = 11.20
Left Panel
A: Not correct. One reactant is dissolved in water. The other is a solid that combines with the one reactant that is in water. That's what aqueous (aq) means.
B: CuCl2 is aqueous (the equation says so) ClCl2(aq) means that the copper chloride is in water. Whatever else B says, this much is true so that Statement B is false.
C: False. The reactants contain a liquid and a solid.
D: True. The statement is true because CuCO3 is labels as a solid(s), and CO2 is labeled as a gas (g).
E: is false. Where is the solid in the products?
Right Panel
Sample Mass: 33.5 grams
Volume: 3.2 cm^3
Density = mass / volume
Density = 33.5 / 3.2 = 10.47.
It can only be silver.
