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A fictitious element X is composed of 20 percent of

A fictitious element X is composed of 70.0 percent of the isotope X^45, 20.0 percent of the isotope X^ 46, and 10.0 percent of
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A fictitious element X is composed of 10.0 percent of the isotope 55^X , 20.0 percent of the isotope 56^X , and 70.0 percent of
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2. asked by Cassie
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A fictitious element X is composed of 20 percent of the isotope X-50,15 percent of the isotope X -51, and 65 percent of the
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A fictitious element X is composed of 78.0% of the isotope X-50, 15.0% of the isotope X-51 , and 7.0% of the isotope X-52.
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2. asked by Gxlden
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Mass of this sample = 3.2 g1. Iron is... a) An element composed of atoms b) An element composed of diatomic molecules c) An
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2. asked by help pls
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Which statement best describes the molecule?(1 point) Responses an atom composed of oxygen and carbon elements. an atom composed
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2. asked by ANSWER CORRECTLY
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The model below shows a molecule of a gas that is present in Earth's atmosphere.OIC Which statement best describes the molecule?
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2. asked by Connexus_solver
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You find a compound composed only of element x and hydrogen,and know that it is 91.33% element x by mass. Each molecule has 2.67
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2. asked by Andrew22
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Which is the best description of a molecule?A molecule of an element is composed of at least two types of atoms. A molecule of a
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10 of 1010 of 10 ItemsQuestion Which statement below is false regarding atoms and elements?(1 point) Responses All atoms of an
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