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Which of these statements is true? A. Some molecules may contain no atoms. B. Some elements found in nature exist as molecules. C. Some compounds include only one type of element. D. Some atoms are made of two or more different elements.
Weegy: Molecules with two atoms are called diatomic molecules. User: Which of these changes do not involve forming or breaking chemical bonds? A. burning and melting B. rusting and cutting C. burning and digesting D. boiling and melting Weegy: C. burning and digesting (More)
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Expert Answered
Asked 10/16/2012 1:27:25 PM
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Which of these changes do not involve forming or breaking chemical bonds? A. burning and melting B. rusting and cutting C. burning and digesting D. boiling and melting
Weegy: The answer is D. boiling and melting. (More)
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Expert Answered
Updated 10/17/2012 11:46:55 AM
2 Answers/Comments
I have been informing you to answer in complete sentence, restate the question as part of your answer, yet you're still doing the same thing. Please don't make any moderators give you another warning.
Added 10/17/2012 8:26:27 AM
I will do andrewpallarca.
Added 10/17/2012 11:46:55 AM
Mark each statement if it correctly identifies a condition that must exist for a culture to be considered a civilization. A. People have developed a systematic approach to religion. B. People have learned to farm and grow a surplus of food. C. People divide up necessary labor. D. People have begun to build cities. E. People are ruled by a monarchy or oligarchy.
Weegy: A. People have developed a systematic approach to religion. User: Which of the following is generally considered the earliest civilization in the Americas? A. Aztec B. Maya C. Olmec D. Inca (More)
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Expert Answered
Asked 10/17/2012 9:04:26 AM
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Who used khipu, a system of recording numbers by tying knots on strings? A. Aztec B. Maya C. Inca
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Updated 112 days ago|6/11/2014 8:58:35 AM
1 Answer/Comment
INCA used khipu, a system of recording numbers by tying knots on strings.
Added 112 days ago|6/11/2014 8:58:35 AM
This answer has been confirmed as correct, not copied, and helpful.
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