The isotopes of neon are represented by the symbols 20x Ne; 21 y Ne; and 22 z Ne. The relationship between x, y, and z is?
The isotopes of neon are represented by the symbols 20x Ne, 21 y Ne, and 22 z Ne. The relationship between x, y, and z is? A. x > y > z B. x < y < z C. x = y= z D. x < z < y Correct Answer: Option C – x = y=...
How many molecules of oxygen would occupy a volume of 2.24 cm³ at s.t.p? [Molar volume at s.t.p = 22,400 cm³, Avogadro’s number = 6.02 x 10²³]
A. 3.01 x 1020 B. 3.01 x 1027 C. 6.02 x 1019 D. 6.02 x 1027 Correct Answer: Option C = 6.02 x 1019
The energy profile diagram illustrates
Consider the following energy profile diagram and use it to answer the question that follows A. an endothermic reaction B. an exothermic reaction C. a spontaneous reaction D. a redox reaction Correct Answer: Option B – an exothermic...
The enthalpy change of the reaction is
Consider the following energy profile diagram and use it to answer the question that follows A. EA B. EB C. EC D. ED Correct Answer: Option D = ED
The activation energy of the reaction is
Consider the following energy profile diagram and use it to answer the question that follows A. EA B. EB C. EC D. ED Correct Answer: Option C = ECProducts
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