law of definite composition


noun

Chemistry. the statement that in a pure compound the elements are always combined in fixed proportions by weight.
Logic. the law that either a proposition or its denial must be true.

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Question 1 of 9
You may have read the word "simmer" in a recipe or two, but what does it really mean?
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020