In the formula for the compound XCl4, the X could represent (1) C (3) Mg (2) Η (4) Zn

2 answers:

7 0

Correct Answer: option 1 i.e. C

Reason:
The the compound of interest i.e. XCl4, since there are 4 Cl atoms bonded to X. This signifies that the valency of X is 4.

There atomic number of C is 6. It's electronic configuration is giving by 1s2 2s2 2p2. Thus, there are 4 electrons in valence shell of C. This signifies that valency of C is 4. Hence the compound present in present case is CCl4.

Genrish500 [490]4 years ago

3 0

(1) C.

The name of the compound is Carbon Tetra Chloride. None of the other elements clearly forms a compound with Cl in that form.

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You need to prepare .200M solution of hydrochloric acid (HCl). If you took out .830ml of the 12.0M stock solution. How much wate

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You must add 48.97 mL of water to make the 0.200 M diluted solution.

Explanation:

In chemistry, dilution is the reduction in concentration of a chemical in a solution. In other words, it is the process of reducing the concentration of solute in solution, simply adding more solvent to the solution.

In a dilution, the quantity or mass of the solute is not changed but only that of the solvent. As only solvent is being added, by not increasing the amount of solute the concentration of the solute decreases.

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In this case:

Cinitial= 12 M
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Replacing:

12 M*0.830 mL= 0.200 M*Vfinal

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49.8 mL - 0.830 mL= 48.97 mL

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According to the statement

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<h3>What is neutralization?</h3>

A chemical reaction in which an acid and a base react quantitatively with each other is known as neutralization or neutralization. In a water reaction, neutralization ensures that there is no excess of hydrogen or hydroxide ions in the solution.

<h3>According to the given information:</h3>

The equation of the neutralization reaction between H2SO4 and CaCO3.

CaCO3 + H2SO4 → CaSO4 + H2CO3

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CaCO3 + H2SO4 → CaSO4 + H2O + CO2

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