Chemical Effects of Electric Current

What are conductors and insulators?

• Conductors are used to control traffic, while insulators are used for soundproofing.

• Conductors are used in jewelry making, while insulators are used in gardening.

• Conductors are used in cooking, while insulators are used in construction.

• Conductors allow the flow of electric current, while insulators do not.

Explain the chemical effects of electric current with an example.

• The chemical effects of electric current can be observed in the heating of a wire when electric current passes through it.

• The chemical effects of electric current can be seen in the formation of rust on metal surfaces.

• An example of the chemical effects of electric current is the electrolysis of water, where the passage of electric current causes water to decompose into hydrogen and oxygen gases.

• An example of the chemical effects of electric current is the production of light in a light bulb.

What is electroplating? Provide an example of an object that is electroplated.

• A gold-plated toothbrush

• A copper-plated bicycle tire

• A silver-plated smartphone

• An example of an object that is electroplated is a chrome-plated car bumper.

How does electric current affect substances like water and copper sulfate?

• Electric current can change the color of water and copper sulfate

• Electric current can cause copper sulfate to evaporate

• Electric current can turn water into solid ice

• Electric current can cause electrolysis in water, separating it into hydrogen and oxygen gas. In the case of copper sulfate, the current can cause the deposition of copper metal on the electrode.

List three factors that affect the chemical effects of electric current.

• Nature of the electrolyte, concentration of the electrolyte, and surface area of the electrodes.

• Temperature of the environment, color of the electrodes, and length of the wires

• Voltage of the power source, distance between the electrodes, and shape of the container holding the electrolyte

• Pressure of the electrolyte, type of the electrodes, and time of day the experiment is conducted

Differentiate between conductors and insulators with respect to their behavior in the presence of electric current.

• Conductors are soft and malleable, while insulators are hard and brittle.

• Conductors allow heat to flow through them easily, while insulators do not allow heat to flow through them easily.

• Conductors are transparent, while insulators are opaque.

• Conductors allow electric current to flow through them easily, while insulators do not allow electric current to flow through them easily.

Describe the process of electroplating and its applications in daily life.

• Electroplating is used in daily life for various purposes such as coating jewelry with a layer of gold or silver to improve its appearance and prevent tarnishing, coating car parts with a layer of chromium to improve their resistance to corrosion, and coating kitchen utensils with a layer of nickel to improve their durability and appearance.

• Electroplating is only used for decorative purposes and has no practical applications in daily life.

• Electroplating is a dangerous process that should be avoided in daily life.

• Electroplating is a time-consuming and expensive process that is not worth the effort for daily life applications.

Discuss the impact of electric current on the substances in terms of their chemical changes.

• Electric current can only cause substances to evaporate

• Electric current can cause chemical changes in substances by breaking down molecules or causing them to react with other substances.

• Electric current has no impact on substances

• Electric current only causes physical changes in substances

Explain how the concentration of the electrolyte affects the chemical effects of electric current.

• Higher concentration of electrolyte leads to decreased chemical effects of electric current.

• Concentration of electrolyte has no effect on the chemical effects of electric current.

• Lower concentration of electrolyte leads to increased chemical effects of electric current.

• Higher concentration of electrolyte leads to increased chemical effects of electric current.

How does the surface area of the electrodes affect the chemical effects of electric current?

• A larger surface area of the electrodes decreases the rate of chemical reactions during electric current flow.

• The surface area of the electrodes has no effect on the chemical reactions during electric current flow.

• A larger surface area of the electrodes increases the rate of chemical reactions during electric current flow.

• A smaller surface area of the electrodes decreases the rate of chemical reactions during electric current flow.