Answer:
it is the first one 10∧12
Explanation:
The proper way to chemically write carbon dioxide is CO2
pH 3 = 10 times of pH 4 in terms of H⁺ concentration
<h3>Further explanation
</h3>
pH is the degree of acidity of a solution that depends on the concentration of H⁺ ion. The greater the value the more acidic the solution and the smaller the pH.
pH = - log [H⁺]
So that the two quantities between pH and [H⁺] are inversely proportional because they are associated with negative values.
A solution whose value is different by n has a difference in the concentration of H⁺ ion of 10ⁿ.
So pH 3 and pH 4 have a difference in the concentration of H⁺ ion of 10¹ = 10
pH 3 = -log[10⁻³]
pH 4 = - log[10⁻⁴]
pH 3 = 10 times of pH 4 in terms of H⁺ concentration
And pH 3 is stronger in acid than pH 4
Answer:
2-; anion
Explanation:
1. Charge
Charge = +8 - 10 = -2
However, when we talk about the charge on an ion, we put the number first, so we say charge is 2-.
2. Type of ion
The ion has a negative charge, so it is an anion.
The nucleus has eight protons (oxygen), so it is an oxyanion.
The symbol for an oxyanion with two negative charges is O²⁻, and its name is the oxide ion.