Answer:
it natural gas or fossil fuels
Salts in order of growing pH of their 0.1 M aqueous solutions: NaHCO₃, , NaHSO₄ , Na2CO3, NH₄NO₃ .
<h3>How do you determine the pH of a substance?</h3>
To calculate the pH of an aqueous solution you want to recognize the attention of the hydronium ion in moles per liter (molarity). The pH is then calculated using the expression: pH = - log [H3O+].
<h3>What makes a salt acidic?</h3>
Since the cation acts as weak, a salt with an anion of a strong acid and a cation of a susceptible base produces an acidic solution with a pH much less than 7.
In this case, the anion will become the spectator ion, while the weak acid dissociates in water and yields H3O+ ions.
Learn more about pH of salts here:
<h3>
brainly.com/question/1352821</h3><h3 /><h3>#SPJ4</h3>
3) is the incorrect statement. Electrons must pair with opposite spins since they are both negatively charged and would therefore repel each other.
Answer:
Explanation:
Given that,
Mass, m = 456 mg = 0.456 g
Volume, V = 62 L
Since, 1 L = 1000 cm³
62 L = 62000 cm³
Using formula, density = mass/volume
So,
So, the density of an object is 
