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pav-90 [236]
3 years ago
11

20. Earth's tallest mountain ranges are formed at _______ plate boundaries. A. continental-continental B. oceanic-oceanic C. oce

anic-continental D. subducting
Chemistry
2 answers:
ziro4ka [17]3 years ago
7 0
I believe that the answer is A, continental-continental.
defon3 years ago
5 0
Coverging continental plates form the tallest mountains.

The answer is A.
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Answer:

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Explanation:

A balanced reaction has the same number of atoms in the both sides of the reaction. In the options:

A. CaCl₂ + H₂CO₃ → 2CaCO₃ + HCI

In this reaction there is 1 Ca in reactants and 2 in products -<em>The reaction is unbalanced-</em>

<em />

<h3>B. CaCl₂ + H₂CO₃  → CaCO₃ + 2HCl </h3>

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C. CaCl₂ + 2H₂CO₃ → CaCO₃ + HCI

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D. 2CaCl₂ + H₂CO₃ →CaCO₃ + HCI

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