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garik1379 [7]
3 years ago
6

In terms of atomic structure, explain why the first ionization energy K is less than that of Ca ?

Chemistry
1 answer:
GalinKa [24]3 years ago
4 0
K is less than Ca because if you are looking at the periodic table, the trend going from left to right, the ionization energy is increasing.
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Along each row of the periodic table,
Naddik [55]

the answer to your question is A

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3 years ago
Read 2 more answers
1. How is melting point of a solid determined?
Oxana [17]

Answer:

Melting points are often used to characterize organic and inorganic crystalline compounds and to ascertain their purity.

Explanation:

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A sample of a compound contains 3.21 g of sulfur and 11.4 g of fluorine. Which of the following represents the empirical formula
Sergeeva-Olga [200]

Answer:

The empirical formula is SF6 (option E)

Explanation:

Step 1: Data given

Mass of sulfur = 3.21 grams

Mass of fluorine = 11.4 grams

Molar mass sulfur = 32.065 g/mol

Molar mass fluorine = 19.00 g/mol

Step 2: Calculate moles

Moles = mass /molar mass

Moles sulfur = 3.21 grams / 32.065 g/mol

Moles sulfur = 0.100 moles

Moles fluorine = 11.4 grams / 19.00 g/mol

Moles fluorine = 0.600 moles

Step 3: Calculate mol ratio

We divide by the smallest amount of moles

S: 0.100 / 0.100 = 1

F : 0.600 / 0.100 = 6

The empirical formula is SF6 (option E)

7 0
3 years ago
For each of the following choose the variable that will be more favorable in solution formation. A) Weak or Strong Solvent inter
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Based on factors affecting solution formation;

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<h3>What is a solution?</h3>

A solution is a substance formed when a substance known as solute dissolves in another substance know as solvent.

Factors that affect solution formation include:

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  • entropy
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Strong solvent-solute intermolecular forces favors solution formation.

Increase in entropy favours solution formation

Decrease in enthalpy favours solution formation.

Learn more about solutions at: brainly.com/question/6675586

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Molecules that contain nothing but hydrogen and carbon are
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Hydrocarbons. They usually burn. In fact, I can't think of one that does not.
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3 years ago
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