Answer:
The correct answer would be 3. The number of atoms of each element in the reactants equals the number of atoms of each element in the products.
Explanation:
The law of conservation of matter states that energy cannot be created or destroyed, only transfered. Thus, option 3 is correct.
Answer:
= 4
Explanation:
The pH of a solution is given by;
pH = - log [H+] , while
pOH = - log [OH-]
But; pH + pOH = 14
Therefore;
pH = 14 - pOH
= 14 - 10
= 4
Arrhenius Acid:
Arrhenius Acid is any specie which when dissolved in water produces H⁺ (proton) Ions.
Nitrous Acid:
Nitrous Acid also acts as Arrhenius Acid when dissolved in water.
HNO₂ + H₂O → NO₂⁻ + H₃O⁺
Where,
H₃O⁺ ⇆ H⁺ + H₂O
As HNO₂ produces H⁺ Ions in water, so it is an Arrhenius Acid.
Wind is related to the movement of warm and cold air