Ver verified communicative property of addition in the pairs
1. -4/3 and 3/7
2. -2/-5 and 1/3
3. 9/11 and 2/13
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Carbon dioxide is an acidic colorless gas with a density about 53% higher than that of dry air. Carbon dioxide molecules consist of a carbon atom covalently double bonded to two oxygen atoms. It occurs naturally in Earth's atmosphere as a trace gas.
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