Chemistry, 25.11.2020 14:00, mcclendoncassandra
Se amestecă 120 g sare grunjoasă cu apă. Rezultă un amestec eterogen care se filtrează. Știind că pe hârtia de filtru rămân 20 g substanțe insolubile în apă determină puritatea sării grunjoase.
Answers: 2
Chemistry, 22.06.2019 13:50, kelonmazon2492
Read the chemical equation. 2c2h2 + 5o2 → 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.
Answers: 3
Chemistry, 22.06.2019 19:00, cindyroxana229
Nan element’s square on the periodic table, the number with the greatest numerical value represents the
Answers: 3
Chemistry, 22.06.2019 21:30, kawaiiblurainbow
Which of the following changes will decrease the total amount of gaseous solute able to be dissolved in a liter of liquid water? (2 points) decreasing temperature decreasing pressure decreasing surface area decreasing solute concentration
Answers: 1
Se amestecă 120 g sare grunjoasă cu apă. Rezultă un amestec eterogen care se filtrează. Știind că pe...
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