Explanation:
There are several ways to define acids and bases, but pH and pOH refer to hydrogen ion concentration and hydroxide ion concentration, respectively. The "p" in pH and pOH stands for "negative logarithm of" and is used to make it easier to work with extremely large or small values. pH and pOH are only meaningful when applied to aqueous (water-based) solutions. When water dissociates it yields a hydrogen ion and a hydroxide.
Answer:
2Al+3Fe ------- Al2O3+3Fe
this is answer no 2
N2+3H2------- 2NH3
this is answer no 3
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generally bacteria reproduce by binary fission
