Answer:
The classification is mentioned below for the particular topic.
Explanation:
- Whether we position 2 different beakers in such a single beaker through one clean edge of zinc-containing H₃Po₄ and another one with unflushed zinc.
- The zinc that was washed set to release hydrogen gas way quicker, unlike unventilated zinc.
⇒
- Since fresh zinc complicates the cycle since, as a comparison to polluted zinc, there was little contact with either the reaction.
I’m not sure maybe let me see pic more clear
I think it’s A (don’t take my word for it just consider that one greatly)
The given compound is
Each formula unit of has 2 mol Potassium (K) atoms, 2 mol Chromium (Cr) atoms and 7 mol Oxygen (O) atoms.
Atomic weight of potassium is 39.0983 amu
Atomic weight of Chromium is 51.9961 amu
Atomic weight of Oxygen is 15.9994 amu.
Therefore the formula weight of
= 294.1846 amu
<u> Increasing pH will </u><u>increase </u><u>solubility of the </u><u>PbI2</u>
What is equilibrium reaction ?
In a chemical reaction, chemical equilibrium is the state in which both the reactants and products are present in concentrations which have no further tendency to change with time, so that there is no observable change in the properties of the system.
PbI2 + 2OH- (aq) ----> Pb(OH)2(s) + 2I- (aq)
Pb(OH)2 is insoluble therefore increasing pH will lead to the formation of the more solid lead (ll)hydroxide which will help to solubulate more PbI2
therefore equilibrium will shift to right side means increasing pH will increase solubility of the PbI2.
Learn more about equilibrium reaction
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