Question Detail

CHM 101 CHM 101 Past Questions Objective Question
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Question

The law of definite proportions states that:
Options
A Matter cannot be created or destroyed.
B A compound always contains the same elements in the same proportion by mass.
Correct Answer
C Atoms of different elements have different masses.
D Energy is conserved in a chemical reaction.
Correct Answer

Option B is the correct answer.

Detailed Explanation

The law of definite proportions (Proust's law) states that a given chemical compound always contains its constituent elements in a fixed ratio by mass.

Hint

Water is always 11.2% H and 88.8% O by mass.

Question Info

Course: CHM 101
Topic: CHM 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 1427 of 1872
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