Laura Benítez (MEd)

(Licenciada en Química. Master en Educación) - AUTORA. Profesora de Química (Educación Secundaria). Redactora científica.

What is an altocumulus?

Saturation can be achieved in two ways: ...

Things that glow under black or ultraviolet light

Blacklights work in a similar way. There are actually two different types of black light, but they work on the same principle: ...

How to prepare a saturated solution

The solution and crystallization processes can be represented as follows: ...

Semiconductor evolution and functions

The cadmium sulfide or CdS semiconductor material is a compound of elements from groups II-VI on the periodic table. This material is used in...

What is ionic bond

Other examples of compounds with ionic bonds are: ...

How many molecules are in a drop of water?

According to the periodic table, the mass of hydrogen is 1.008 g/mol, and the mass of oxygen is 16.00 g/mol; So, the mass of...

Calculation of solubility and solubility product

aA (s) ↔ cC (aq) + dD (aq)  ...

How Ionic Compound Formulas Work

3.5: Ionic Compounds-Formulas and Names . (2022). Retrieved January 31 from https://chem.libretexts.org/Bookshelves/General_Chemistry/Map%3A_A_Molecular_Approach_(Tro)/03%3A_Molecules_Compounds_and_Chemical_Equations/3.05%3A_Ionic_Compounds-_Formulas_and_Names ...

What is Gay-Lussac’s law?

Gay-Lussac's mathematical expression would be: ...

What are amphoteric oxides?

Sulfurous acid: SO 2 + H 2 O –> H 2 SO 3 ...

What are the parts of a nucleotide?

https://www.genome.gov/en/genetics-glossary/Nucleotide ...

What is stereoisomerism?

However, when facing...

Definitions of pH, pKa and pKb

pH and pOH are related, so the sum of these two values ​​is always equal to fourteen, that is:  ...

The saponification reaction. Definition and process.

There are two types of fatty acids: ...

alkaline earth metals

Ba (s) + 2 H 2 O (l) –> Ba(OH) 2  (aq) + H 2 (g) ...

combination reactions

A + B –> AB ...

Human capital: concept and characteristics

In economics, the term capital is defined as the set of assets that a company needs so that it can produce goods or provide...

strong and weak electrolytes

NaCl (s) –> Na + (aq) + Cl – (aq) ...

What are chemical properties? Definition and examples

The internal qualities of a substance can be altered to determine its chemical properties. Let's see some examples: ...

The Nitrogen Family of Elements

All group 15 elements follow the following general periodic trends: ...

pOH concept

pOH = – log ...

Exceptions to the octet rule

Martínez, M. Exceptions to the octet rule . A teacher. Retrieved on February 22, 2022 from https://www.unprofesor.com/quimica/exceptions-de-la-regla-del-octeto-1066.html ...

What does it mean when one substance dissolves in another?

Factors Affecting Solubility  Temperature...

Definition of weak nuclear forces

Weak interaction | Definition & Facts . (2021). Retrieved May 31, 2021 from https://www.britannica.com/science/weak-force ...

Solidification Definition and Examples

Heats of Fusion and Solidification | Chemistry for Non-Majors. (2021). Retrieved 30 May 2021, from https://courses.lumenlearning.com/cheminter/chapter/heats-of-fusion-and-solidification/ ...

What is a real gas in chemistry?

A real gas is one that deviates from the behavior of the so-called ideal gas law. The ideal gas is a theoretical gas, whose...

The chemical reaction of photosynthesis

The general reaction of photosynthesis is as follows: ...

Metals, nonmetals, and metalloids of the periodic table

https://www.windows2universe.org/earth/geology/metals.html&lang=sp https://dequimica.com/teoria/netal-no-metal-y-metaloides ...

What is a carbonyl group?

The most important characteristics of the carbonyl group are the following: ...

What is a calorimeter?

Heat released in the reaction = Heat absorbed by the calorimeter + Heat absorbed by the solution ...

Difference Between Chemical and Physical Changes

Maillard's reaction. (2009). Retrieved 20 March 2021, from https://www.directoalpaladar.com/cultura-gastronomica/la-reaccion-de-maillard ...

How to convert grams to moles

The calculation of the molecular mass of KMnO4 would be: ...

Calculation of absolute error and relative error

Absolute error = Actual value – Measured value  ...

How to Convert Atmospheres to Pascals

Pascals = atmospheres x 101.325 ...

periodic tables to print

PDF to download In...

What is the relative error?

Relative error = 100 = 0.578% ...

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Mistakes we make with our trees

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What is a JAVA event?

For example, let's say we have a JButton (a...

What is coevolution? Definition and examples

In its most basic form, coevolution is defined as...

What is the difference between somatic cells and gametes?

Sexual reproduction is one in which two sex cells,...