Multiple Choice
Which of the following is an example of chemical energy?
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1. Intro to General Chemistry
Chemical Properties
Multiple Choice
Which of the following associations between elements and their chemical properties is incorrect?
A
Iron can form rust when exposed to oxygen and moisture.
B
Sodium is highly reactive with water.
C
Helium is a highly reactive noble gas.
D
Chlorine is a strong oxidizing agent.
Verified step by step guidance1
Identify the chemical properties of each element mentioned in the problem: Iron, Sodium, Helium, and Chlorine.
Recall that Iron (Fe) can react with oxygen and moisture to form iron oxide, commonly known as rust. This is a correct association.
Understand that Sodium (Na) is an alkali metal known for its high reactivity with water, producing sodium hydroxide and hydrogen gas. This is also a correct association.
Review the properties of Helium (He), which is a noble gas. Noble gases are characterized by their lack of reactivity due to having a full valence electron shell. Therefore, the statement that Helium is highly reactive is incorrect.
Recognize that Chlorine (Cl) is indeed a strong oxidizing agent, meaning it readily gains electrons in chemical reactions. This is a correct association.
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