potassium, a soft, grey metal, reacts violently with water to produce heat and light. What visual clue here indicates that a chemical reaction has occurred? A) Bubbles were observed B) A precipitate formed C) The color of the metal is grey D) Energy change in the form of heat and light
potassium, a soft, grey metal, reacts violently with water to produce heat and light. What visual clue here indicates that a chemical reaction has occurred? A) Bubbles were observed B) A precipitate formed C) The color of the metal is grey D) Energy change in the form of heat and light
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Generally when metals react with water the metal hydroxide is formed and hydrogen gas is evolved.
When potassium(K), a soft , grey metal reacts with water there is formed potassium hydroxide (KOH) and hydrogen gas (H2) with a large amount of heat.So it is an exothermic reaction.
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