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) Atoms are neither created nor destroyed in an ordinary chemical reaction.
(2) The mass of a mole of a substance depends on the identity of the substance.
(3) One mole of O₂ molecules contains 6.02 * 10²³ molecules.

Question

Quizplus · Accepted Answer

(1) True - This is the law of conservation of mass, which states that in a chemical reaction, the mass of the reactants must equal the mass of the products.
(2) True - The mass of a mole is determined by the molar mass, which is specific to each individual substance. Therefore, the mass of a mole is dependent on the identity of the substance.
(3) True - This is Avogadro's number, which states that one mole of any substance contains 6.02 x 10^23 particles, regardless of the identity of the substance.

Characterize EACH of the Three Given Statements as Being TRUE