b. A mole of a monatomic element corresponds to one Avogadro's number of atoms.
c. One mole of a monatomic element has a mass equal to its atomic mass expressed in grams.
d. One mole of water contains 1/2 mole of oxygen atoms.
e. None of the above
It is false that d. One mole of water contains 1/2 mole of oxygen atoms.
Let's consider which of the following statements about the mole is false.
a. The size of a mole of atoms has a reasonable mass. TRUE. For instance, 1 mole of Na has a mass of 23 grams.
b. A mole of a monatomic element corresponds to one Avogadro's number of atoms. TRUE. A mole of atoms contains 6.02 × 10²³ atoms (Avogadro's number).
c. One mole of a monatomic element has a mass equal to its atomic mass expressed in grams. TRUE. For instance, the molar mass of Na is 23 g/mol and the atomic mass is 23 amu.
d. One mole of water contains 1/2 mole of oxygen atoms. FALSE. The molar ratio of H₂O to O is 1:1. Thus, 1 mole of H₂O contains 1 mole of O.
It is false that d. One mole of water contains 1/2 mole of oxygen atoms.
Learn more: brainly.com/question/11580870
Answer:
The answer is D.
Explanation:
Hope this helps.
Decomposition reaction /cracking reactions
Answer:
filtration: pore sizes less than 0.45 micrometers
Explanation:
Which statement is true about energy in this reaction?
(1) The reaction is exothermic because it releases heat.
(2) The reaction is exothermic because it absorbs heat.
(3) The reaction is endothermic because it releases heat.
(4) The reaction is endothermic because it absorbs heat.
Answer: The answer is (2) the reaction is exothermic because it releases heat.