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3 years ago

Identify the following properties of ionic bonds .

Chemistry

1 answer:

madreJ [45]3 years ago

3 0

Answer:

properties of ionic bond

good conductivity

hard

solid at room temperature

ability to dissolve in water

can't dissolve in non polar solvents

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Calcium is a group 2 element. Chlorine is a group 7 element. They form an ionic compound called

kondaur [170]

Answer:

CaCl2

Explanation:

For every calcium there's 2 chlorine

7 0

3 years ago

What is a polar functional group?

earnstyle [38]

I think this is the answer

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3 years ago

Predict the order of elution if you were to attempt to separate using column chromatography on silica gel and with a gradient el

Minchanka [31]

Answer:

Follows this order: B=> A => C.

Explanation:

NB: kindly check the attachment for the diagram of compounds A, B and C.

Elution is a very important concept in chromatography separation techniques. It deals with the use of eluent in the removal of an adsobate from an adsorbent. The principle behind Elution is just about how polar the solvent is.

So, in this question Compound B will go with the Elution first because of its polarity. Compound B has lesser polarity as compared to Compounds A and B.

Compound A will then elutes second because of its polarity too as resonance increases its polarity.

Last, compound C elutes because it has the highest polarity which is caused by electronegative atoms.

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3 years ago

An ordered list of chemical substances is shown. Chemical Substances 1 CuO 2 O2 3 CO2 4 NO2 5 Fe 6 H2O Which substances in the l

a_sh-v [17]

Answer:

reactants: 2 O2

products: 3 CO2, 4 NO2, 6 H2O

Explanation:

In a combustion, a combustible material, which generally is composed of C, H, O, N, and S, is combusted, that is, react with oxygen after a spark was produced; obtaining fire, heat and subproducts, including ashes and gases.

Oxygen is always one of the reactants of a combustion.

If Nitrogen was present in the combustible, NO2 (or other nitrogen oxides) will be produced.

If Carbon was present in the combustible, CO2 will be produced (also CO can be produced).

If Hydrogen was present in the combustible, H2O will be produced.

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4 years ago

Convert 4.50 moles of fe to atoms of fe

Rina8888 [55]

<span>Avogadro's number represents the number of units in one mole of any substance. This has the value of 6.022 x 10^23 units / mole. This number can be used to convert the number of atoms or molecules into number of moles. We do as follows:

4.50 mol Fe ( 6.022x10^23 atoms / 1 mol Fe ) = 2.71x10^24 atoms Fe present </span>

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3 years ago