Chemistry, 13.04.2021 23:30 jadeandryna0609
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7) As you move left to right across Period 3 from Sc to Zn, the energy needed to remove an electron from an atom —
A. generally increases
B. generally decreases
C. does not change
D. varies unpredictably
Answers: 3
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2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here
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Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.
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HI PLEASE HELP
7) As you move left to right across Period 3 from Sc to Zn, the energy needed to rem...
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