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Chemistry, 22.06.2019 19:00
Suppose that a certain fortunate person has a net worth of $71.0 billion ($7.10Ć1010). if her stock has a good year and gains $3.20 billion (3.20Ć109) in value, what is her new net worth?
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Chemistry, 23.06.2019 00:50
What is the enthalpy of combustion (per mole) of c4h10 (g)? ā2,657.5 kj/mol ā5315.0 kj/mol ā509.7 kj/mol ā254.8 kj/mol
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Chemistry, 23.06.2019 10:30
4al + 3o2 ā 2al2o3 what does the "3" in front of o2 stand for? a) it indicates that there are 5 oxygen atoms after you add the coefficient and the subscript. b) it indicates that that there are are total of 6 oxygen atoms all bonded together as a single molecule. c) it indicates that there are 3 oxygen molecules chemically bonded to each other in the reaction. d) it indicates that there are 3 separate oxygen molecules in the reaction.
Answers: 2
Chemistry, 23.06.2019 13:30
The process by which liquid water changes into water vapour is called what ?
Answers: 2
How many moles are in 9 grams of water...
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