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miss Akunina [59]
3 years ago
6

When calcium reacts with tellurium to form an ionic compound, each metal atom loses electron(s) and each nonmetal atom gains ele

ctron(s). There must be calcium atom(s) for every tellurium atom(s) in the reaction.
Chemistry
1 answer:
Finger [1]3 years ago
7 0

Answer:

When calcium reacts with tellurium it will donates its two electrons and these two electron will be accepted by tellurium.

There must be 1 calcium atom for every 1 tellurium atom in the reaction.

Explanation:

Calcium has atomic number of 20. Its electronic configuration is given as:

[Ca]=1s^2 2s^2 2p^6 3s^2 3p^6 4s^2

Calcium atom will loose 2 elections to attain electronic configuration of noble gas.

[Ca^{2+}]=1s^2 2s^2 2p^6 3s^2 3p^6 4s^0

Ca\rightarrow Ca^{2+}+2e^-

Tellurium has atomic number of 52. Its electronic configuration is given as:

[Te]=1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^{10} 4s^24p^6 4d^{10} 5s2 5p4

Tellurium atom will gain 2 elections to attain electronic configuration of noble gas.

[Te^{2-}]=1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^{10} 4s^24p^6 4d^{10} 5s2 5p6

Te+2e^-\rightarrow Te^{2-}

So, when calcium reacts with tellurium it will donates its two electrons and these two electron will be accepted by tellurium.

Ca^{2+}+Te^{2-}\rightarrow CaTe

There must be 1 calcium atom for every 1 tellurium atom in the reaction.

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3 years ago
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When formic acid is treated with potassium hydroxide (KOH), an acid-base reaction occurs, forming a carboxylate ion. For the mec
Arturiano [62]

Answer:

See explanation

Explanation:

The reaction between formic acid and potassium hydroxide is an acid base reaction.

Remember that an acid base reaction yields salt and water only.

If you look at the curved arrow mechanism shown, you will discover that the hydroxide ion from KOH abstracts a proton from the acid to yield potassium formate and water

5 0
3 years ago
2.00g of Copper wire was added to 50.0 mL of a 0.050M solution of Silver Nitrate. The reaction
Svet_ta [14]

Answer:

See explanation

Explanation:

Now, the equation of the reaction is;

Cu(s) + 2AgNO3(aq) --------> Cu(NO3)3 (aq) + 2Ag(s)

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Number of moles of AgNO3 = 50/1000 * 0.050 = 0.0025 Moles

If 2 moles of AgNO3 yields 2 moles of Ag

Then  0.0025 moles of AgNO3 yields  0.0025 * 2/2 = 0.0025 moles of Ag

Number of moles of Cu = 2.00g/63.5 g/mol = 0.03 moles

If 1 mole of Cu yields 2 moles of Ag

0.03 moles of Cu yields  0.03 moles * 2/1 = 0.06 moles of Ag

Hence AgNO3 is the limiting reactant

Theoretical yield of Ag = 0.0025 moles of Ag * 108 = 0.27 g

Actual yield of Ag = 0.24 g

Percent yield = actual yield/theoretical yield * 100

Percent yield = 0.24/0.27 * 100

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4 0
3 years ago
With regards to Lewis-electron diagrams, which of the following compounds has resonance forms?
andre [41]

Explanation:

The resonance compounds are compounds that have the same position of the atoms (same quantity and elements) but the position of the electrons arround them is different in each resonance compound.

In reality, the compound switches between all the resonance structures it has.

One example of resonance Lewis structures is the Ozone's as can be seen in the figure.

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3 years ago
7. Which of the following compound is the most soluble in CC14? C. NH3 A. HF B. NaCl D. C10H22​
Mashutka [201]

C10H22 is a compound which is the most soluble in CC14 because both are non-polar in nature.

<h3>Why polar solute soluble in polar solvent?</h3>

We know that like dissolve like which means that polar solutes only  dissolve in polar solvent while on the other hand, non-polar solutes only dissolve in non-polar solvent.

So we can conclude that C10H22 is a compound which is the most soluble in CC14 because both are non-polar in nature.

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4 0
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