Look at the position of Pb in the Periodic Table and the postion of the Alkali Earth metals.
Alkali Earth Metals are in noble-gas configuration when they are doubly charged cations.
Lead however is on the right hand side, and would like to have more electrons to get into that stablest configuration; making the bonds in lead-compounds more covalent -and stronger- in nature.
Insoluble compounds have lattice enthalpies higher than the enthalpy of solvation.
Now since Alkali Earth metals like to be in ionic states; their compounds will dissolve in general more easily than the same compounds with lead, since usually the lattice energy of lead compounds is much higher (In case of insoluble compounds higher than the energy that would be released upon solvation, which thus doesn't occur).
1) NaOH : solubilities between alkaline earth metals and lead are similar as we can see alkaline earth metals show cloudy and solid and lead show cloudy as well.
2) NaCl: solubilities between alkaline earth metals and lead are different because all of the alkaline earth metals are soluble but lead is not.
3) NABr: solubilities between alkaline earth metals and lead are similar because all of the alkaline earth metals and lead are soluble.
4) NaI: solubilities between alkaline earth metals and lead are different because all of the alkaline earth metals are soluble but lead is not soluble but also yellow.
5) Na2SO4: solubilities of top two alkaline earth metals are different because top two are soluble but lead is not and solubilities of bottom two alkaline earth metals are similar.
6) Na2CO3: solubilities between alkaline earth metals and lead are similar since all of compounds show cloudy and solid.
7) Na2C2O4: solubility of top first alkaline earth metals is different from lead because top first compound is soluble but lead is not and solubilities of rest of alkaline earth metal is similar since those show cloudy and solid.
All alkaline earth metals and their salts are reactive and they have a blue-print that identifies them as an alkaline earth metal but metals exist as metals, and salts as salts, with different structural compounds.
Compare is a verb.
Compare is a verb.
You could compare it to the skin of a fruit.
It is helpful to compare maps because you can see which map is better for your situation.
All alkaline earth metals and their salts are reactive and they have a blue-print that identifies them as an alkaline earth metal but metals exist as metals, and salts as salts, with different structural compounds.
a compound will be two elements chemically bonded to each other a mixture can be two or more different compounds (or elements) in an area (i.e a beaker, the atmosphere)
Molecular compounds tend to have lower melting points.
m
compare and contrast how the different concentration of auxins affects the plant growth?
The alkali metals are more reactive.
compare the different kinds of animal population
Isomerism. The structures of the molecules are different even when the numbers of atoms are the same. Organic molecules are the most common examples of this. Compare n-butane and iso-butane same formula different structures. See link
pH 6 is a very weak acid and pH 9 is an alkaline
"It is important to compare the prices of different commodities in different shops" is an example of a sentence with the word compare.
Atoms can interact in different manners. Compounds can have the same ratios of atoms combined in different ways producing different properties (cis and trans forms of compounds come to mind). Additionally, many compounds consist of the same elements but in different ratios. Compare Carbon dioxide, a inert waste product of respiration, to carbon monoxide, a gas deadly to humans. Both use carbon and oxygen, but CO2 has an extra oxygen molecule, greatly changing its properties. So in short, no. Atoms can combine in multiple ratios, and even compounds of equal ratios can come together in different manners to produce different compounds.
Compounds have different properties from the elements that make them. ... The properties of a compound depend not only on which atoms the compound contains, but also on how the atoms are arranged.