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nasty-shy [4]
3 years ago
5

Write the formula for aluminum oxide.

Chemistry
2 answers:
exis [7]3 years ago
6 0

Answer:

Al₂O₃

Explanation:

-Dominant- [34]3 years ago
5 0

Answer: Al2O3

Explanation:The answer is Al2O3.

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EXPERIMENT 3: What do the observations during the reaction tell you about this single displacement reaction
ziro4ka [17]

Answer:

Explanation:

This question is incomplete. However, let's understand what a single displacement reaction is and what occurs during such reactions.

A single displacement reaction is a reaction in which a more reactive element displaces/replaces a less reactive element in a compound. The reactions below depict a single displacement reaction.

A + BC ⇒ AC + B

2Al + Fe₂O₃ ⇒ Al₂O₃ + 2Fe

During chemical reactions, heat is either absorbed from the environment (endothermic reaction) or given off into the environment (exothermic reaction). <u>During bond formation (in a reaction), heat is released into the environment (exothermic) while when bonds are broken, heat is absorbed from the environment (endothermic).</u>

During single displacement reaction, heat is given off, hence single displacement reaction is an exothermic reaction because it involves the formation of a bond (for the compound formed in the product).

Please note that <u>it can be argued that bonds were also broken in the reactants before new ones are formed in the products, however the bonds broken in the reactant do not require much heat from the environment because the more reactive element ordinarily has a higher activity than the displaced element thus, the entire reaction produces heat (exothermic) when the new bond is being formed</u>.

What is usually observed during a single displacement reaction is the release of heat and this shows the reaction is an exothermic reaction.

6 0
3 years ago
Predict the shape of the molecule.
mariarad [96]
Tetrahedral is the answer
3 0
3 years ago
Can somebody explain this?
STatiana [176]

Answer:

Hydrogen idodie is formed (HI)

6 product molecules formed

Limiting reactant (like the name,it means what is limited,in other words, it means it is lacking of , which is hydrogen in this case)

while iodine is in excess

6 0
3 years ago
El número de átomos de una molécula depende de la --- de los elementos ya que es la capacidad de la union de átomos ?
ss7ja [257]

Answer:

El número de átomos de una molécula depende de la "valencia" de los elementos, ya que es la capacidad de la unión de los átomos.

Explanation:

La valencia de un elemento se define como la medida de la capacidad de combinación de un elemento. Es la capacidad de combinación de un elemento con otros elementos para formar un compuesto químico o molécula.

Básicamente es el número de electrones de valencia que un elemento puede perder, ganar o compartir para formar enlaces químicos requeridos a partir de compuestos o moléculas.

¡¡¡Espero que esto ayude!!!

English Translation

The number of atoms of a molecule depends on the "valency" of the elements since it is the capacity of the union of atoms.

The valency of an element is defined as the measure of the combining ability of an element. It is the combining capacity of an element with other elements to form a chemical compound or molecule.

It is basically the number of valence electrons that an element can lose, gain or share in order to form chemical bonds required to from compounds or molecules.

Hope this Helps!!!

4 0
3 years ago
Is there an N−Cl bond in solid ammonium chloride?
Tems11 [23]
When ammonia is reacted with HCl it abstracts proton from acid and forms Ammonium Ion and Chloride Ion.

                              NH₃  +  HCl   →   ⁺NH₄  + Cl⁻ (simply Written NH₄Cl)
Structure,
              The structure of Ammonium Chloride is among those structures which contains all three types of bonding's, i.e.
                                  
                                                Ionic Bond

                                                Covalent Bond

                                                Coordinate Covalent Bond

Three Hydrogen atoms previously bonded with Nitrogen are covalent in nature. The new incoming proton from HCl forms co-ordinate covalent bond with Nitrogen and Chloride Ion containing negative charge make Ionic Bond with the positive Ammonium Ion. In question, if the line between Nitrogen and Chlorine atom is assumed covalent then it is incorrect. Structure is shown below,

5 0
3 years ago
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