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Questions and Answers
What is the effect of electric current on a chemical substance?
What is the effect of electric current on a chemical substance?
- It can cause the substance to change color
- It can cause the substance to undergo a chemical change (correct)
- It has no effect on the chemical properties of the substance
- It can only cause the substance to heat up
What happens to a chemical substance when electric current passes through it?
What happens to a chemical substance when electric current passes through it?
- It will never change state
- It will always produce a solid
- It will always change color
- It may produce a gas (correct)
What is the result of the chemical effect of electric current?
What is the result of the chemical effect of electric current?
- Formation of new substances (correct)
- Formation of energy
- Change in physical state only
- No change in the substance
What is the definition of an electric current?
What is the definition of an electric current?
In electric circuits, what are the primary charge carriers?
In electric circuits, what are the primary charge carriers?
What unit is electric current expressed in within the International System of Units (SI)?
What unit is electric current expressed in within the International System of Units (SI)?
What are the charge carriers in an electrolyte?
What are the charge carriers in an electrolyte?
What device is used to measure electric current?
What device is used to measure electric current?
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Study Notes
Electric Current and Its Effects
- Electric current can cause chemical changes in a substance, such as electrolysis.
- When electric current passes through a chemical substance, it can initiate or accelerate chemical reactions.
- The result of the chemical effect of electric current can be the decomposition of a substance into its constituent elements.
Electric Current Definition
- Electric current is the flow of electric charge, typically in the form of electrons or ions.
Electric Circuits
- In electric circuits, the primary charge carriers are electrons.
Units of Electric Current
- Electric current is expressed in amperes (A) within the International System of Units (SI).
Electrolytes
- In an electrolyte, the charge carriers are ions.
Measuring Electric Current
- An ammeter is used to measure electric current.
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