Multiple Choice
When a person chews on a saltine cracker for five minutes, it begins to taste sweet. Which of the following best explains this change in taste?
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1. Intro to General Chemistry
Chemical Properties
Multiple Choice
Which of the following associations between chemical properties and elements is not correct?
A
Helium - Inert gas
B
Chlorine - Reactive halogen
C
Carbon - Non-metal with metallic properties
D
Sodium - Highly reactive metal
Verified step by step guidance1
Identify the chemical properties of each element mentioned in the problem: Helium, Chlorine, Carbon, and Sodium.
Understand the term 'inert gas': Inert gases, also known as noble gases, are elements that are very stable and unreactive due to having a complete valence electron shell. Helium is a noble gas.
Understand the term 'reactive halogen': Halogens are elements in Group 17 of the periodic table and are known for being highly reactive, especially with alkali metals and alkaline earth metals. Chlorine is a halogen.
Understand the term 'non-metal with metallic properties': Non-metals typically do not exhibit metallic properties such as conductivity, malleability, or luster. Carbon is a non-metal and does not exhibit metallic properties under normal conditions.
Understand the term 'highly reactive metal': Metals that react vigorously with water or oxygen are considered highly reactive. Sodium is an alkali metal known for its high reactivity, especially with water.
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