Chemistry, 05.11.2020 09:20 Animallover100
calculate the average atomic mass of carbon of 98.9% of the atoms are C12 and 1.1% are c-13 atoms give your answer to the correct number of significant figures
Answers: 2
Chemistry, 23.06.2019 04:20
Calculate the mass of 0.750 mol of the following substance. na3po4.
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Chemistry, 23.06.2019 10:30
4al + 3o2 → 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 13:00
Which of the following statements is true about both nuclear fusion and nuclear fission? they occur in the sun. heavy atoms are split. two light nuclei combine. some mass changes into energy.
Answers: 1
Chemistry, 23.06.2019 13:30
Which factors would have influenced earth’s climate during the time of pangea? check all that apply. land covered by glaciers one large landmass one large ocean tectonic activity multiple small seas
Answers: 2
calculate the average atomic mass of carbon of 98.9% of the atoms are C12 and 1.1% are c-13 atoms gi...
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