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Chemistry, 22.06.2019 10:30
Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space
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Chemistry, 22.06.2019 14:30
Amixture that has two or more substances that are spread out evenly is called a. compound b. heterogeneous c. substance d. homogeneous
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Chemistry, 22.06.2019 20:00
Phosphoric acid is a triprotic acid ( =6.9Ă10â3 , =6.2Ă10â8 , and =4.8Ă10â13 ). to find the ph of a buffer composed of h2poâ4(aq) and hpo2â4(aq) , which p value should be used in the hendersonâhasselbalch equation? p k a1 = 2.16 p k a2 = 7.21 p k a3 = 12.32 calculate the ph of a buffer solution obtained by dissolving 18.0 18.0 g of kh2po4(s) kh 2 po 4 ( s ) and 33.0 33.0 g of na2hpo4(s) na 2 hpo 4 ( s ) in water and then diluting to 1.00 l.
Answers: 3
What is the expected number of valence electrons in an atom of the element flerovium in ground state...
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