Solution (a) contains 0.01 m of nh4cl; solution
(b)contains 0.01 m of nacl; solution (c) contains 0.01 m of
naoh; andsolution (d) contains 0.01 m of ba(oh)2. arrange
the phof the solutions in an increasing order.

NH4Cl, NaCl, Ba(OH)2, NaOH

Explanation:

NH4Cl is an acidic salt formed by the neutralization of a strong acid (HCl) with a weak base (NH3). Hence, it will habe a PH<7 (the lowest PH).

NaCl is a neutral salt,formed by neutralization of a strong acid (HCl) with a strong base (NaOH). Hence, it will have a PH of 7.

Ba(OH)2 is a weak base. Therefore, it will have a PH between 8 and 10.

NaOh meanwhile, is a strong base. Therefore, it will have a PH between 10 to 13.

Hence, we have

NH4Cl < NaCl < Ba(OH)2 < NaOH

answer: a chemical reaction

explanation:

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