Answer: A physical change is a change that can be undone.
Explanation: An example of this is mixing red blocks, green blocks, and blue blocks. You can easily separate them.
Answer:
did you ever get the answer lol
Salts that are from strong bases and strong acids do not hydrolyze. Salts that are from strong bases and weak acids do hydrolyze, which gives it a pH greater than 7. Salts of weak bases and strong acids do hydrolyze, which gives it a pH less than 7.
Answer:
Balanced chemical equation:
Pb(NO₃)₂ + 2KI → PbI₂ + 2KNO₃
Explanation:
When potassium iodide react with lead(II) nitrate, lead iodide is produced and solution of potassium nitrate also formed. The lead iodide is produced in the form yellow precipitate.
Chemical equation:
Pb(NO₃)₂ + KI → PbI₂ + KNO₃
Balanced equation:
Pb(NO₃)₂ + 2KI → PbI₂ + 2KNO₃
The equation is balanced because there are one lead atom, two nitrate, two potassium and two iodide atoms are on both side of equation.
Word equation:
Lead nitrate + potassium iodide → lead iodide + potassium nitrate
PH is the potential of hydrogen, pH provides a measure of the concentration of hydrogen ion while pOH scale provides the concentration of OH- ions.
pH denotes the negative logarithm of concentration of hydrogen while pOH denotes the negative logarithm of the concentration OH- ions.
Therefore; in this case the pOH= -log (OH-)
= - log (10^-10)
= 10
If the pOH is 10 then the pH of the solution will be 4