Characterize EACH of the Three Given Statements as Being TRUE

question 25

Multiple Choice

Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices: (1) 3.0 moles of CO has a greater mass, in grams, than does 2.0 moles of CO₂.
(2) In a balanced chemical equation, there must be the same total number of molecules on each side of the equation.
(3) The molar mass and formula mass for a compound have different units but the same numerical value.

• A) All three statements are true.
• B) Two of the three statements are true.
• C) Only one of the statements is true.
• D) None of the statements is true.

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Definitions:

Piaget's Ideas

The theories of cognitive development proposed by Jean Piaget, emphasizing how children progress through distinct stages of development.

Transitivity

Principle that says if a relation holds between a first object and a second object, and holds between the second object and a third object, then it holds between the first object and the third object. Piaget argued that an understanding of transitivity is characteristic of concrete operational thought.

Logical

Pertaining to the use of reason and systematic thinking to analyze and form judgments.

Seriation

The concrete operation that involves ordering stimuli along a quantitative dimension (such as length).