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geniusboy [140]
3 years ago
7

Which piece of evidence supporting the theory of plate tectonics was discovered most recently?

Chemistry
1 answer:
goldenfox [79]3 years ago
7 0
 The occurrence of volcanic and earthquake activity near continental boundaries
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A solution of K2SO4 and KCl is added to a solution of Ba(NO3)2. Which of these compounds will precipitate out of this combined s
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A solution of K2SO4 and KCl is added to a solution of Ba(NO3)2. BaS0₄ (s) will precipitate out of this combined solution.

Molecular equation

K2SO4(aq) + Ba(NO3)2(aq)  → BaSO4(s) + 2 KNO3(aq)?

This equation represents a double displacement (replacement) reaction, also called a metathesis reaction, in which the reactant ions exchange places to form new products. The general equation is:

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Complete ionic equation: Includes all ions and the precipitate.

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In an aqueous solution, precipitation is the process of transforming a dissolved substance into an insoluble solid from a super-saturated solution.

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