Chemistry, 29.02.2020 00:00 arwasoliman363
Given a balanced chemical equation between H2SO4(aq) and KOH(aq) H2SO4(aq) + 2 KOH(aq) β K2SO4(aq) + 2 H2O(l) What volume (in mL) of 0.43 M H2SO4(aq) solution is necessary to completely react with 120 mL of 0.35 M KOH(aq)? Note: (1) The unit of volume of H2SO4(aq) is in mL (2) Insert only the numerical value (integer) of your answer (do not include the units or chemical in your answer).
Answers: 2
Chemistry, 21.06.2019 16:30
Asample of silver (with work function ? = 4.52 ev) is exposed to an ultraviolet light source (? = 200 nm), which results in the ejection of photoelectrons. what changes will be observed if: silver is replaced with copper (? = 5.10 ev) more photoelectrons ejected no photoelectrons are emitted fewer photoelectrons ejected more energetic photoelectrons (on average) less energetic photoelectrons (on average)
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Use the measurements in the table to determine which unidentified metal has the highest density. metal volume mass a 10.5 cm3 122 g b 14.2 cm3 132 g c 16.1 cm3 115 g d 12.7 cm3 126 g
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Iron (fe) reacts with copper sulfate (cuso4) to form iron (ii) sulfate. in this reaction, cu2+ gains electrons to form cu. which statement is true about this reaction? fe(s) + cuso4(aq) β feso4(aq) + cu(s)
Answers: 3
Given a balanced chemical equation between H2SO4(aq) and KOH(aq) H2SO4(aq) + 2 KOH(aq) β K2SO4(aq) +...
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