Which equation obeys the law of conservation of mass?
2 answers:
Answer:-
Explanations:- A balanced equation obeys the law of conservation of mass.
First equation is not balanced as it has two Fe on left side and four Fe on right side.
Second equation is not balanced as it has two O on left side and six O on right side.
Third equation is not balanced as it has one Fe on left side and two fe on right side.
Fourth equation is balanced as it has four Fe and six O on both sides. So, it obeys the law of conservation of mass.
You might be interested in
Answer: hydroxide ions
Explanation:
According to the Arrhenius concept, an acid is a substance that ionizes in the water to give hydronium ion or hydrogen ion and a bases is a substance that ionizes in the water to give hydroxide ion .
According to the Bronsted Lowry conjugate acid-base theory, an acid is defined as a substance which donates protons and a base is defined as a substance which accepts protons.
According to the Lewis concept, an acid is defined as a substance that accepts electron pairs and base is defined as a substance which donates electron pairs.
As KOH can give hydroxide ions on dissociation , it is considered as arrhenius base.