Answer:
The answer is true
Explanation:
Products in chemical reactions are rearranged during the reaction, the atoms end up in different combinations in the products. This makes the product new substances that are chemically different than the reactants
Answer:
Explanation:
Write the balance chemical equation ,
initial concenration of
lets assume that degree of dissociation=
concenration of each component at equilibrium:
as is very small then we can neglect
therefore ,
Eqilibrium concenration of
A reagent that could be used to precipitate mercury(II) ions from contaminated water is H2S.
The precipitation will be shown using a net ionic equation. To show the net ionic equation, we must first write the molecular equation as follows;
Hg^2+(aq) + H2S -----> HgS(s) + H^+(aq)
The total ionic equation is;
Hg^2+(aq) + 2H^+(aq) + S^-(aq) ------>HgS(s) + H^+(aq)
Eliminating the spectator ions, we arrive at the final net ionic equation;
Hg^2+(aq) + S^-(aq) ------>HgS(s)
So, H2S can be used as a reagent to remove Hg^2+ from contaminated water.
Learn more: brainly.com/question/22885959
There are 6 molecules of Mg3(PO4)2
6 × 3 = 18 Mg
6 × 4 × 2 = 48 O