Quimica

1. What is solubility of a chemical compound?
The solubility of a chemical compound can be defined as the maximum amount,
expressed in grams, that it can dissolve in 100g of water at a temperatureconstant. In general, the higher the temperature, the solubility increases. The data reported
carrying and tables are found at 25 ° C.
2. Why some salts are more soluble than others?
A salt isless soluble if one of its ions is already in solution to this is known as a common ion effect.
The common ion effect is very important in the balance of solubility. As a result of the common ioneffect, a salt, in the presence of one of its ions, is less soluble.
We can also say that the pH affects the solubility of a salt.
3. What is a periodic property?
Are properties which have thechemical elements which are repeated sequentially in the periodic table. By placing in her of an item, we can deduce that these properties have values ​​and their chemical behavior.
There are a number ofperiodic properties. Among the most important highlight:
- Electronic structure: distribution of electrons in the orbitals of the atom
- Ionization potential: energy required to extract anelectron.
- Electronegativity: measures the tendency to attract electrons.
- Electron affinity: energy released by capturing an electron.
- Character metal: define their metallic or non-metallic behavior.- Valencia ion: number of electrons needed to win or lose for the octet.
4. Does the solubility can be considered a periodic property (or is a property that changes due to periodic changes in theproperties?
No, it's a property that changes due to changes in chemical properties.
5. Do the periodic properties influence the formation of chemical compounds? If the
yes, how would they do?
6.What happen in each test tube?
NaCl
BaCl
CaCl2
Kcl
Mgcl2
Before and after adding H2SO4
7. What is...