Chemistry, 08.06.2020 09:57 charlesmb7985
An element A contains two naturally occurring isotopes 17 35 A and 17 37 A. If the abundance of these two isotopes are 75% and 25% respectively. Calculate the average atomic mass of the element A.
Answers: 3
Chemistry, 22.06.2019 03:30
Explain why pure hydrogen cyanide does not conduct electricity, but become a conductor when it is dissolved in water? (at room temp, pure hcn exists as a volatile liquid)
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Which of the following describes a situation where competition between producers exists
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Chemistry, 22.06.2019 17:00
Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.
Answers: 2
An element A contains two naturally occurring isotopes 17 35 A and 17 37 A. If the abundance of thes...
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