Chemistry, 04.12.2019 07:31 alyonaprotopopova
Abituminous coal sample had a mass of 20.0 grams after complete
drying. the coal's sulfur was chemically converted to the precipitate barium sulfate, baso4. if the mass of the dry precipitate is 2.35 grams,
what was the percent sulfur in the dry coal? how did you find your answer?
Answers: 3
Chemistry, 21.06.2019 20:30
14. complete and balance the equations for the single displacement reactions. a. zn + pb(no3)2 -> b. al + niso4 -> 15. complete and balance the equations for the double displacement reactions. a. agno3(aq) + nacl(aq) -> b. mg(no3)2(aq) + koh(aq) -> 16. complete and balance the equations for the combustion reactions. a. __ ch4 + o2 -> b. __ c3h6 + o2 -> c. + o2 ->
Answers: 2
Chemistry, 22.06.2019 06:00
How many atoms of mg are present in 97.22 grams of mg? 6.022 × 1023 2.408 × 1024 4.818 × 1024 5.855 × 1025
Answers: 2
Chemistry, 22.06.2019 14:50
How are evaporation and sublimation similar? a both involve the formation of a gas. b both release energy to the surroundings. c both take place throughout a solid. d both take place at the surface of a liquid.
Answers: 1
Abituminous coal sample had a mass of 20.0 grams after complete
drying. the coal's sulfur was...
drying. the coal's sulfur was...
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