객관식
Which of the following is the correct chemical formula for calcium nitrate?
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3. Chemical Reactions
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객관식
What is the correct name for the compound LiOH?
A
Lithium oxide
B
Lithium peroxide
C
Lithium hydride
D
Lithium hydroxide
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검증된 단계별 안내1
Identify the chemical formula given: LiOH.
Recognize that Li is the symbol for lithium, a metal, and OH is the hydroxide ion, which consists of one oxygen and one hydrogen atom bonded together with a negative charge.
Understand that when lithium combines with the hydroxide ion (OH⁻), the compound formed is called lithium hydroxide, because it contains the hydroxide ion.
Recall that lithium oxide (Li₂O) contains only lithium and oxygen, lithium peroxide (Li₂O₂) contains lithium and a peroxide ion (O₂²⁻), and lithium hydride (LiH) contains lithium and hydrogen without oxygen.
Therefore, the correct name for LiOH is lithium hydroxide, as it consists of lithium cations (Li⁺) and hydroxide anions (OH⁻).
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