Answer:
True.
Explanation:
Remember that hydronium ions indicate the concentration of an acid.
On the pH scale, the acids are between 0 and 7, and for bases, the pH is between 7 and 14.
The formula to calculate the pH of an acid is the following:
Now, let's replace the value of the given concentration in the formula, which is 1 x 10⁻⁷:
You can note that if the value of hydronium concentration is greater than 1 x 10⁻⁷, and we replace it in the formula, we will obtain lower pHs, which means that it is an acidic solution.
The answer would be true.
Answer:
No reaction
Explanation:
Single-displacement reaction is the chemical reaction in which one metal which has higher negative redox potential replaces the another from it's salt solution.
Thus, Cu cannot replaces zine from its salt as it is less reactive than zince.
However, zinc can replace copper from its salt as: