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Softa [21]
3 years ago
8

Which properties are characteristic of metalloids?

Chemistry
2 answers:
ziro4ka [17]3 years ago
8 0

Answer:

Yes the answer is C.) intermediate conductivity and a high melting point

Explanation:

I just took the test and got 100%

Setler [38]3 years ago
7 0
<h2>Answer:</h2>

<u>The right option is</u><u> (C) intermediate conductivity and a high melting point</u>

<h2>Explanation:</h2>

Metalloids usually look like metals but behave largely like nonmetals. Metalloids are shiny, brittle solids with intermediate good electrical conductivity. Their properties lie between metals and non metals. All metalloids exist as solids at room temperature and they have very high melting points. The physical properties of metalloids are more likely to be metallic, but their chemical properties tend to be non-metallic

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The names and chemical formulae of some chemical compounds are written in the first two columns of the table below. Each compoun
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Answer:

See below  

Explanation:

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Zinc iodide              ZnI₂            H₂O(ℓ),  I⁻(aq), Zn²⁺(aq),  

Nitrogen(I) oxide     N₂O           H₂O(ℓ),  N₂O(aq)

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Nickel(II) iodide       NiI₂            H₂O(ℓ),  I⁻(aq), Ni²⁺(aq)

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  • ZnI₂ and NiI₂ produce twice as many iodide ions as metal ions.
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How many protons, neutrons, and electrons are in a neutral atom with the symbol 41Ca
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<u>Explanation:</u>

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The variation of one or several of the following factors can alter the equilibrium condition in a chemical reaction:

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In the case of the reaction in the question, <u>the change that moves the balance to the left will be the one that moves it towards the reagents</u>, that is, that favors the production of reagents instead of products.

  • Decreasing the concentration of SO3 and increasing the concentration of SO2 <u>will favor the production of SO3</u>, which is the product of the reaction.
  • Decreasing the volume increases the pressure of the system and the balance will move to where there is less number of moles. In the case of the reaction in question, we have 3 moles of molecules in the reactants (1 mole of O2 + 2 moles of SO2) while in the products there are 2 moles of SO3 only, therefore, <u>decreasing the volume will displace the balance to the right</u>, which corresponds to the sense in which there is less number of moles.

The reaction of the question is an exothermic since ΔH <0, therefore in the reaction heat is produced and it can be written in the following way,

2SO2(g) + O2(g) ⇌ 2SO3(g) + heat

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Explanation:

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