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Chemistry 1120 Exam 1 Practice Questions and Answers (ECU Study Guide 2026)

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Chemistry 1120 Exam 1 Practice Questions and Answers (ECU Study Guide 2026)

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Chemistry 1120 Exam 1 Practice Questions and Answers (ECU Study Guide 2026)


A positively charged particle formed by loss of one or more electrons from an atom is called
a(an) - ANS ✔✔cation



Which one of the compounds below is most likely to be ionic? - ANS ✔✔SrBr2



In order to form an octet, an atom of selenium will - ANS ✔✔gain 2 electrons



What fourth period element is represented by the dot structure shown? X: - ANS ✔✔Ca



The correct Roman numeral for the chromium ion in the compound CrCl3 is - ANS ✔✔III



What is the formula of the nitrate ion? - ANS ✔✔NO3-1



What is the formula for the ionic compound formed between lithium and bromide? - ANS
✔✔LiBr



What is the name of Mg3(PO4)2? - ANS ✔✔magnesium phosphate



The property that describes the ease with which an atom gives up an electron to form a positive
ion is - ANS ✔✔ionization energy



A chemical bond formed when two atoms share two pairs of electrons is a ________ bond; it is
best described as ________. - ANS ✔✔double; covalent



Which representation of a hydrogen molecule is not correct?

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