The Net Ionic Equation for the Reaction Between Zinc and Hydrochloric

question 35

Multiple Choice

The net ionic equation for the reaction between zinc and hydrochloric acid solution is

• A)Zn(s)+ 2 H⁺(aq)→ Zn²⁺(aq)+ H₂(g).
• B)Zn(s)+ 2 HCl(aq)→ ZnCl₂(aq)+ H₂(g).
• C)Zn²⁺(aq)+ H₂(g)→ ZnS(s)+ 2 H⁺(aq).
• D)ZnCl₂(aq)+ H₂(g)→ ZnS(s)+ 2 HCl(aq).
• E)none of these

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Definitions:

Independent Variables

Variables in an experiment or study that are manipulated or changed to observe their effects on dependent variables.

Dependent Variables

In scientific research, the variable that is being tested and measured, expected to change as a result of manipulations to the independent variable.

Control Variable

In research, a variable that is kept constant to not affect the outcome of an experimental investigation, ensuring that any changes in the dependent variable are due to the independent variable.

Systematically

In a methodical and organized manner, following a system, plan, or order.