Assignment
Disadvantages of Fossil Fuels
What are disadvantages of using fossil fuels to generate electricity? Check all that apply.
Eventually, fossil fuels will be used up.
Substances in the smoke from power plants provide health benefits to people who inhale them.
Obtaining fossil fuels harms the environment
Poisonous metals are present in the ash from coal-burning power plants.
In some places, coal is abundant.

Answerthis solution will not form a precipitateexplanationsolubility equilbrium:         pbf₂(s)  ⇄ pb²⁺(aq) + 2 f⁻(aq)the solubility product expression is    (we exclude solids from the equilibrium expression).now suppose we have the trial ion product q, which we can define as    then, we can interpret  q as the product of the concentration of the ions that we have and ksp as the product of the ion concentrations that are needed to form a saturated solution.if q > ksp, then that implies that there will be a surplus of ions that exceed the amount that is required to form a saturated solution. a precipitate will then form (the precipitate continually  forms until the surplus ions are removed and q is decreased to ksp's value).if q = ksp, the saturated solution that forms is barely saturated and the precipitate will be minimal.if q < ksp, then the ion concentration will not be enough to form a saturated solution (so no precipitate).using our information, we calculate the trial ion product:     since q = 2.7  × 10⁻⁸ < ksp =  4  ×  10⁻⁸, a precipitate will not form.

If this is a true or galse then its true but if not then what is the question?

H tricky one let me think and get back to u