In the Balanced Net Ionic Equation for the Reaction of Solid

question 16

Multiple Choice

In the balanced net ionic equation for the reaction of solid CaCO₃ and aqueous hydrochloric acid,which produces aqueous chloride and an acid that decomposes into the other two products,what appears on the left side of the net ionic equation?

• A)CaCO₃(s) + 2 H⁺(aq) + 2 Cl^-(aq)
• B)CaCO₃(s) + 2 Cl^-(aq)
• C)CaCO₃(aq) + HCl(aq)
• D)CaCO₃(s) + 2 H⁺(aq)
• E)Ca²⁺(aq) + 2 Cl^-(aq)

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Definitions:

Trophic Levels

The levels in an ecosystem, representing a step in the food chain or food web, characterized by organisms that share the same function in the food chain and the same nutritional relationship to the primary sources of energy.

Natural Food Chains

A sequence of organisms each dependent on the next as a source of food, demonstrating the flow of energy and nutrients in an ecosystem.

Conversion Efficiency

A measure of how effectively a system converts input energy into output energy or work.

Food Pyramid

A visual representation to illustrate the recommended balance of different food groups in a healthy diet.