<span>To determine the balanced chemical equation, it is necessary to identify the symbols and charges for each element and then balance the equation. This results in:
Al(OH)3(aq) + 3HBr(aq) ---> AlBr3(aq) + 3H2O(l)
The net ionic equation involves summing the charges and breaking them down into fundamental parts.
Al3+ + 3OH- + 3H+ + 3Br- --> Al3+ + 3Br + H3O+
After eliminating aluminum and bromine, we have:
3OH-(aq) + 3H+(aq) --> 3H2O(l)</span>
Atoms X and Y are placed in identical positions in the periodic table because they are isotopes.
Answer:
The glycerol solution has a molality of 2.960×10^-2 mol/kg.
Explanation:
Calculating the moles of glycerol involves the formula: Moles = Molarity × Volume of solution = 2.950×10^-2 M × 1 L = 2.950×10^-2 moles.
To find the mass of water, use: Mass = Density × Volume = 0.9982 g/mL × 998.7 mL = 996.90 g, which converts to 0.9969 kg.
The formula for molality is: Molality = Moles of solute/Mass of solvent (in kg) = 2.950×10^-2/0.9969 = 2.960×10^-2 mol/kg.
Although I may not be the smartest, I can definitely answer.
This represents a chemical change because the substances' chemical identities were altered. The fizzing was a clear sign, and the temperature increase was another indicator of the reaction.
