Answer:
The correct answer is option D, that is, the ions are now combining to reduce their concentrations.
Explanation:
On the basis of the chemical equation:
PbCl₂ (s) ⇒ Pb²⁺ (aq) + 2Cl⁻ (aq)
It is mentioned that the value of Ksp is 1.8 × 10⁻²
As the solubility product is very less or negligible for this reaction that signifies that the ions produced are getting combined, resulting in the reduction of the concentration of the ions and enhancing the formation of the solid lead chloride. Therefore, they associate together to produce solid lead chloride.
To determine whether the amount of H2 in the lab is dangerous, we first need to know how much hydrogen gas is present in the room in units of percent by volume. For this particular problem, we cannot exactly determine since we do not know the total volume of the room. Hope this answers the question.
18
In chemistry, a group is a column of elements in the periodic table of the chemical elements. There are 18 numbered groups in the periodic table; the f-block columns are not numbered.
A 10.0cm3 volume of alcohol has a mass of 7.05g. 
is the density
Answer:
<u>Explanation:</u>
The ratio between the mass of a substance and its unit volume is referred as density.
is the Answer
<u>Note:</u>
1000 g = 1 kg
100 cm = 1 m
When we used to transform the given values into S.I units, then
Alcohol’s volume can be written as, 
Alcohol’s mass can denote as, 
Then, 
