Which of the Following Statements Regarding Atomic Theory Is Incorrect

question 112

Multiple Choice

Which of the following statements regarding atomic theory is incorrect?

• A)John Dalton's experimental results led to the law of conservation of mass.
• B)Antoine Lavoisier's experiments showed that the mass of the products of a chemical reaction equals the mass of the reacting substances.
• C)When wood is burned, the ashes weigh less than the original wood, but this is not a violation of the law of conservation of matter.
• D)Dalton's atomic theory says that a chemical reaction is a rearrangement of atoms into one or more different chemical substances.
• E)Joseph Proust's findings regarding the reactions between metals and oxygen led to the law of definite proportions.

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Definitions:

Curare

A toxin derived from South American plants that acts as a neuromuscular blocking agent by inhibiting acetylcholine receptors at the neuromuscular junction, historically used as a paralyzing poison.

Acetylcholine

A neurotransmitter important for learning and memory, as well as muscle contraction, involved in many functions across the nervous system.

Blocks Receptors

Refers to substances or mechanisms that inhibit the action of neurotransmitters by occupying their receptor sites and preventing activation.

Agonist

A chemical or drug that binds to receptors in the brain and causes a reaction or response similar to a naturally occurring substance.