While traveling to a distant universe, you discover the hypothetical element. You obtain a representative sample of the element and discover that it is made up of two
Isotopes, X-23 and X-25. To help your science tear calculate the atomic mass of the substance, you send the following drawing of your sample with your report. In the report, you
also inform the science team that the light atoms are X-23, which have an isotopic mass of 23.02amu, and the dark atoms areX-25, which have an isotopic mass of 25.147amu.
What is the atomic mass of element X
Answers: 1
Chemistry, 22.06.2019 12:30
Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.
Answers: 2
Chemistry, 22.06.2019 13:30
1) which of the following is the best example of a physical change? a) sugar dissolving in tea b) firefly glowing 2) in the combustion of ethane, what is/are the reactants? c2h6 + o2 ==> co2 + h2o a) c2h6 and o2 b) co2 and c2h6
Answers: 2
Chemistry, 22.06.2019 16:20
When water dissolves sugar, which process is not involved? o dissociation o hydration o surface area of the solute increases sa
Answers: 1
Chemistry, 22.06.2019 16:30
Ammonium perchlorate nh4clo4 is the solid rocket fuel used by the u.s. space shuttle. it reacts with itself to produce nitrogen gas n2 , chlorine gas cl2 , oxygen gas o2 , water h2o , and a great deal of energy. what mass of nitrogen gas is produced by the reaction of 2.1g of ammonium perchlorate?
Answers: 2
While traveling to a distant universe, you discover the hypothetical element. You obtain a represent...
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