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zaharov [31]
2 years ago
12

Using aluminium as an example, describe the key properties of p-block metals.

Chemistry
2 answers:
ruslelena [56]2 years ago
8 0

Answer:

Physical Properties of Aluminum

Aluminum has a lower density than any other commercial metal except magnesium. Given the right type of surface, aluminum makes an excellent reflector, especially for ultraviolet light.

Aluminum is an odorless, tasteless, silvery white metal. With increasing silicon and ductile and quite soft. The aluminum crystal has a face centered cubic structure.

The concentration of the lattice in the less pure metal results from the formation of impurity segregations. Purity also affects most other physical properties.

Aluminum has a lower density than any other commercial metals except magnesium.

Aluminum may also be used as a selective cold or hot wall or as a body approximating to the effect of a black body. In the infrared region the reflectivity of aluminum is exceeded only slightly by that of gold and silver.

Chemical Properties of Aluminum

1. Reaction of Aluminum with Air

Generally, Aluminum metal does not react with air as its surface is covered with a thin layer of oxide that helps protect the metal from attack by air. However, in case the oxide layer gets damaged, and the Aluminum metal gets exposed, it reacts again with oxygen forming amphoteric oxide (Aluminum (lll) Oxide), Al2O3.

4Al (s) + 3O2 (l) → 2Al2O3 (s)

Explanation:

Properties of P-Block Metals These metals have classical metal characteristics that they are shiny, good conductors of heat and electricity and also, they lose electrons. They have high melting points and react with non-metals to form ionic compounds.

olga nikolaevna [1]2 years ago
6 0

Answer:

P-block metals have classic metal characteristics like they are shiny, they are good conductors of heat and electricity, and they lose electrons easily. These metals have high melting points and readily react with nonmetals to form ionic compounds.

Explanation:

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Vika [28.1K]

It took 380,000 years for electrons to be trapped in orbits around nuclei, forming the first atoms.

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6 0
2 years ago
Convert 512 kilograms to milligrams.<br><br> 0.000512<br> 0.512<br> 512,000<br> 512,000,000
olga55 [171]
The answer is D! 512000000
5 0
3 years ago
Read 2 more answers
The terms Q and K refer to reaction components at non-equilibrium and equilibrium conditions, respectively. For a forward reacti
daser333 [38]

Answer:

The value of Q must be less than that of K.

Explanation:

The difference of K and Q can be understood with the help of an example as follows

         A ⇄ B

In this reaction A is converted into B but after some A is converted , forward reaction stops At this point , let equilibrium concentration of B be [B] and let equilibrium concentration of A be [A]

In this case ratio of  [B] and  [A]  that is

K =  [B] / [A] which is called equilibrium constant.

But if we measure the concentration of A and B ,before equilibrium is reached , then the ratio of the concentration of A and B will be called Q. As reaction continues concentration of A increases and concentration of B decreases. Hence Q tends to be equal to K.

Q = [B] / [A] . It is clear that Q < K before equilibrium.

If Q < K , reaction will proceed towards equilibrium or forward reaction will

proceed .

8 0
3 years ago
If a reaction occurs, what will be the products of the unbalanced reaction below?Zn(s) + HCl(aq) --&gt;
irakobra [83]

The products will be ZnCl_2(s) + H_2(g)

<h3>Chemical reactions</h3>

Zn is higher than hydrogen in the reactivity series. Thus, it will be able to displace hydrogen from the acid.

The equation of the reaction becomes: Zn(s) + HCl(aq) -- > ZnCl_2 (s) + H_2 (g)

Hydrogen gas is released as a result. In fact, it is one of the ways of preparing hydrogen gas in the laboratory.

More on chemical reactivity can be found here: brainly.com/question/9621716

#SPJ1

3 0
2 years ago
according to Boyles law if the initial pressure and volume of a gas were five atm for the pressure and 10 mL for the volume and
maks197457 [2]

Answer:The new volume is 5mL

Explanation:

The formular for Boyles Law is; P1 V1 = P2 V2

Where P1 = 1st Pressure   V1 = First Volume

          P2 = 2nd Pressure V2 = Second Volume

From the question; P1 = 5atm, V1 = 10ml

                                P2 = 2 x P1 (2 x 5) = 10 atm   V2 =?  

Using the Boyles Law Formular;  P1 V1 = P2 V2, we make V2 the subject of formular;  P1 V1/ P2 = V2

∴ 5 x 10/ 10 = 5

∴ V2 = 5mL

5 0
3 years ago
Read 2 more answers
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