Ions are electrically charged particles that are ...

Ions are electrically charged particles that are formed when certain compounds are dissolved in water. These solutions will conduct electricity. The Swedish scientist Svante Arrhenius coined the term ion (which means wanderer) to explain why solutions of electrolytes will conduct an electric current. When an electrolyte forms into a solution, it dissolves or dissociates into ions, a process called ionization. If a substance does not ionize, it will not conduct an electric current. Electrolytes include most acids, bases, and salts. Some conductors include hydrogen and sodium chloride, copper sulfate, and potassium nitrate. Substances that are not electrolytes include distilled water, sugar water, and most organic compounds. Which of the following is a nonelectrolyte?


A) H 2 SO 4 (sulfuric acid) B) HCL (hydrochloric acid) C) C 3 H 8 (propane gas) D) NaCl (table salt)
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The answer is C: Propane -- because it is a hydrocarbon and hydrocarbons are not soluable in water.


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As temperature rises, solids generally become more soluble in water, but gases become less soluble. If a soft drink contains high concentrations of sugar and carbon dioxide, which of the following may be expected to happen if it is cooled down? A) Sugar may precipitate out. B) Gas bubbles may form and produce foam. C) Water may evaporate rapidly.

As temperature rises, solids generally become more soluble in water, but gases become less soluble. If a soft drink contains high concentrations of sugar and carbon dioxide, which of the following may be expected to happen if it is cooled down? A) Sugar may precipitate out. B) Gas bubbles may form and produce foam. C) Water may evaporate rapidly.

As temperature rises, solids generally become more soluble in water, but gases become less soluble. If a soft drink contains high concentrations of sugar and carbon dioxide, which of the following may be expected to happen if it is cooled down? A) Sugar may precipitate out. B) Gas bubbles may form and produce foam. C) Water may evaporate rapidly.

which can be considerd a electrolyte A. Carbon Dioxode B. Sodium Chloride, C. Distilled Water, Or D.Hydrogen Peroxoide

is propane a nonelectrolyte?

president lydon felt that the most important first step in the war against poverty was?

 

President Lyndon B. Johnson's Special Message to Congress, March 16, 1964

This Act provides five basic opportunities.

It will give almost half a million underprivileged young Americans the opportunity to develop skills, continue education, and find useful work.

It will give every American community the opportunity to develop a comprehensive plan to fight its own poverty-and help them to carry out their plans.

It will give dedicated Americans the opportunity to enlist as volunteers in the war against poverty.

It will give many workers and farmers the opportunity to break through particular barriers which bar their escape from poverty.

It will give the entire nation the opportunity for a concerted attack on poverty through the establishment, tinder my direction, of the Office of Economic Opportunity, a national headquarters for the war against poverty.

To view the full message to Congress visit the following website:

http://www.fordham.edu/halsall/mod/1964johnson-warpoverty.html 

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