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Katyanochek1 [597]
3 years ago
12

elect the correct answer. The elements beryllium, calcium, and strontium are all in group 2. What is the correct relationship of

these elements regarding their ionization energy? A. Ca < Be < Sr B. Sr < Be < Ca C. Be < Ca < Sr D. Sr < Ca < Be E. Ca < Sr < Be

Chemistry
1 answer:
deff fn [24]3 years ago
3 0

Answer:

D. Sr < Ca < Be  

Step-by-step explanation:

<em>Ionization energ</em>y decreases from top to bottom within a Group, because the valence electrons are further from the nucleus and therefore easier to remove.

Thus, <em>Sr has the lowest</em> ionization energy and <em>Be the highes</em>t.

The correct order is Sr < Ca < Be.

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Explanation:

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If the change in Gibbs free energy for a process is positive, the corresponding change in entropy for the universe will be
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If the change in Gibbs free energy for a process is positive, the corresponding change in entropy for the universe will be positive.

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Read more about Gibbs free energy here brainly.com/question/9179942

4 0
2 years ago
A flexible container at an initial volume of 6.13 L contains 2.51 mol of gas. More gas is then added to the container until it r
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Answer:

2.12 moles of gas were added.

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We can solve this problem by using<em> Avogadro's law</em>, which states that at constant temperature and pressure:

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5 0
3 years ago
The equation X + Y yields 
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Most likely the equation yields a new compound XY. This is a synthesis reaction. <span>Synthesis reaction is a reaction where two or more substances combine to form a new compound. It is a reaction which releases energy in the form of heat and light. Therefore, it is an exothermic reaction.</span>
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see explanation

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