Answer:
In a neutral solution the concentration of hydrogen ions is equal to the concentration of hydroxide ions
Explanation:
When:
[H⁺] > [OH⁻] the pH is acid, so the solution is practically acid.
When
[H⁺] < [OH⁻], the pH is basic, so the solution is practically basic
In neutral solutions:
[H⁺] = [OH⁻], so the pH is neutral (7)
pH > 7 → BASIC SOLUTIONS
pH < 7 → ACID SOLUTION
The reaction CO₂(g) → C(s) +O₂(g) is a decomposition reaction is true
Explanation
A Decomposition reaction is a reaction in which involve breaking down a compound into two or more simpler substances.
The reaction above is a decomposition reaction since CO₂ molecule is broken down into C (an element) and O₂ (a molecule).
