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3 years ago

Difference between chemical properties of metals and non metals.

Chemistry

2 answers:

kozerog [31]3 years ago

8 0

Answer:

Chemical property of metals:

They are generally very reactive.
Its oxides generally have a basic behavior in the presence of water.

Chemical property of non-metals:

Some are not very reactive, however, there are others such as oxygen and chlorine that are very reactive.
Its oxides generally have an acidic behavior in the presence of water.

Explanation:

Most metals are solid, with the exception of mercury (Hg), which is liquid, has a bright color, is a good conductor of heat and electricity and is malleable (easily molded). Nonmetals, on the other hand, are liquid (most), are not good conductors of heat and electricity, and are not susceptible to molding.

Both have different physical and chemical properties, but both are important for different activities.

Vilka [71]3 years ago

3 0

Answer:Chemical Properties: Non-metals generally have somewhere around 4 to 8 electrons in the outer shell. Non-metals tend to gain or accept valence electrons. When they are exposed to oxygen, non-metals react with oxygen to form acidic oxides.

Explanation:

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You might be interested in

DedPeter [7]

Explanation:

- Simple Distillation: its a separation method that can be used when the two or more liquids in the mix have at least 50 degrees of difference between their boiling points.

-Azeotropic distillation: is a technique to break an azeotrope (constant boiling point mixtures), that can't be separated by simple distillation, by adding another component to generate a new azeotrope (between one initial component and the new one added) with lower boiling point.

-Extractive distillation: is a process to separate mixtures with close boiling points by adding a miscible, high boiling or none volatile solvent to increase the relative volatility of the liquids in the mix, this increases the separation factor. It differences from the azeotropic method because it doesn't form an azeotrope.

-Liquid-liquid extraction: is a method to separate compounds based on their relative solubilities in two different immiscible liquids.

After describing all the methods we can conclude that all of them are methods to separate substances based on their physical properties, this is their similarity. The difference between this method is the property it uses to separate (solubility in the case of extraction and boiling point in the case of destinations), the cases in which they bare used (when the liquids difference in boiling points is bigger [simple] or close [attractive and azeotropic]) and the formation of azeotropes (present in azeotropic and absent in extractive).

I hope you find this information useful and interesting! Good luck!

6 0

3 years ago

1. Identify the atom in that has the greater ionization energy.<br> A. Calcium Ca<br> B. Barium Ba

Alisiya [41]

Answer:

Calcium

Explanation:

Calcium-6,1132

Barium-5,2117

6 0

3 years ago

Read 2 more answers

Acetylene burns in air according to the following equation: C2H2(g) + 5 2 O2(g) → 2 CO2(g) + H2O(g) ΔH o rxn = −1255.8 kJ Given

professor190 [17]

Answer: -227 kJ

Explanation:

The balanced chemical reaction is,

$C_2H_2(g)+\frac{5}{2}O_2(g)\rightarrow 2CO_2(g)+H_2O(g)$

The expression for enthalpy change is,

$\Delta H=\sum [n\times \Delta H_f(product)]-\sum [n\times \Delta H_f(reactant)]$

$\Delta H=[(n_{CO_2}\times \Delta H_{CO_2})+ n_{H_2O}\times \Delta H_{H_2O})]-[(n_{C_2H_2}\times \Delta H_{C_2H_2})+(n_{O_2}\times \Delta H_{O_2})]$

where,

n = number of moles

$\Delta H_{O_2}=0$ (as heat of formation of substances in their standard state is zero

Now put all the given values in this expression, we get

$-1255.8=[(2\times -393.5)+(1\times -241.8)]-[(1\times \Delta H_{C_2H_2})+(\frac{5}{2}\times 0)]$

$-1255.8=[(-787)+(-241.8)]-[(1\times \Delta H_{C_2H_2})+(0)]$

$\Delta H_{C_2H_2}=-227kJ$

Therefore, the enthalpy change for $C_2H_2$ is -227 kJ.

7 0

3 years ago

What is the difference between an endangered species and a threatened species?

erastovalidia [21]

Answer:

D. An endangered species is in danger of becoming extinct in the near future. A threatened species could become endangered in the near future.

Explanation:

5 0

3 years ago

Read 2 more answers

Convert 16.8 liters into moles

Svetlanka [38]

0.73, I think

Explanation: Converting from volume (liters) to moles: Divide your initial volume by the molar volume constant, 22.4 L. Converting from moles to volume (liters): Multiply your mole value by the molar volume constant, 22.4L.

4 0

4 years ago