Dependent variable. the independent is non dependent of the variable.
Answer:
4. Atoms in crystals are in an ordered array. In amorphous materials, they are randomly distributed.
Explanation:
<h3>Answer:</h3>
Formic acid is the stronger acid.
<h3>Explanation:</h3>
The strength of an acid is determined by the power of it to dissociate and produce H⁺ ions. Greater the dissociation of an acid, the stronger that acid is. Also, extent of dissociation for particular acid is given by its dissociation constant i.e. Ka.
The greater the Ka value, the stronger an acid is and vice versa.
Calculating Ka value of Pivalic acid:
As,
pKa = -log [Ka]
So,
Ka = 10^-pKa
Putting value of pKa,
Ka = 10⁻⁵
Ka = 1.0 × 10⁻⁵
Calculating Ka value of Formic acid:
As,
pKa = -log [Ka]
So,
Ka = 10^-pKa
Putting value of pKa,
Ka = 10⁻³'⁸
Ka = 1.58 × 10⁻⁴
<h3>Conclusion:</h3>
As the Ka value of Formic acid is greater than Pivalic acid therefore, it is stronger acid than Pivalic acid.
<h2>TIP:</h2>
When comparing strength of acids, the acid with the lowest pKa value is considered the strongest acid and <em>vice versa</em>.
CH4 Methane which is the prototypical organic molecule and the others are chemical not sure about water
The combination of gases that surround and protect the Earth is the ATmosphere
