객관식
Which of the following is the correct chemical formula for ruthenium(IV) oxide?
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3. Chemical Reactions
Naming Ionic Compounds
객관식
Which type of compound is CaBr_2?
A
Acid
B
Ionic compound
C
Covalent compound
D
Molecular compound
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검증된 단계별 안내1
Identify the elements involved in the compound CaBr_2: calcium (Ca) and bromine (Br).
Determine the type of elements: calcium is a metal, and bromine is a nonmetal.
Recall that compounds formed between metals and nonmetals are typically ionic compounds due to the transfer of electrons from metal to nonmetal.
Recognize that calcium, a metal, tends to lose electrons to form Ca^{2+} ions, while bromine, a nonmetal, tends to gain electrons to form Br^{-} ions.
Conclude that CaBr_2 is an ionic compound because it consists of positively charged calcium ions and negatively charged bromide ions held together by ionic bonds.
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