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Author Question: Consider the following selected postulates of Dalton's atomic theory: (i) Each element is ... (Read 664 times)

hubes95

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on: Aug 27, 2018
Consider the following selected postulates of Dalton's atomic theory:
 
  (i) Each element is composed of extremely small particles called atoms.
  (ii) Atoms are indivisible.
  (iii) Atoms of a given element are identical.
  (iv) Atoms of different elements are different and have different properties.
  Which of the postulates is(are) no longer considered valid?
  A) (i) and (ii)
  B) (ii) only
  C) (ii) and (iii)
  D) (iii) only
  E) (iii) and (iv)

Question 2

An element cannot ________.
 
  A) be part of a heterogeneous mixture
  B) be part of a homogeneous mixture
  C) be separated into other substances by chemical means
  D) interact with other elements to form compounds
  E) be a pure substance
Chemistry: The Central Science ¦ Brown, LeMay, Bursten ¦ 14th Edition
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Sophiapenny

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Reply #1 on: Aug 27, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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hubes95

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Reply 2 on: Aug 27, 2018
Thanks for the timely response, appreciate it

xiazhe

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Reply 3 on: Yesterday
Excellent

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