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Cards In This Set
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A carbonated beverage that contains carbon dioxide gas in a solution is an example of a liquid- gas system
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False
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Orange juice is a heterogenous mixture
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True
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The periodic table organizes elements into a grid of vertical columns known as periods.
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False
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Seawater is a substance.
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False
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The magnetization of an iron rod is an example of a chemical change.
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False
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The cange in color of tree leaves in fall is an example of a chemical change.
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False
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Mendeleev's original table could accommodate elements that didn not even exist.
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True
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The emission of photons fromt the surface of a metal depends on the frequency of incident , not on the intensity of light.
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True
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The elemts in group 7A have one valence electron.
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False
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Iron, in an ionic form, is in the center of the hemoglobni molecule.
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True
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A chemical bond results from the interaction between two nuclei.
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False
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The element neon, with the electron configuration 1s2 2s2 2p6, will not form a chemical bond wiht another element, oxygen.
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True
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A sodium ion is more stable that a sodium atom.
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True
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The more negative the lattice energy of an ionic compound, th eweaker the force of attraction.
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False
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A monotomic ion always has one unit of charge on the species.
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False
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