Chemistry, 28.01.2021 20:30 Naysa150724
An isotope of cesium (cesium-137) has a half-life of 30 years. If 1.0 g of cesium-137 disintegrates over a period of 90 years, how many g of cesium-137 would remain?
Answers: 2
Chemistry, 21.06.2019 20:00
2h2s + 3o2 2so2 + 2h2o which option gives the correct mole ratios? h2s: so2 = 2: 2 and o2: h2o = 3: 2 h2s: so2 = 2: 3 and o2: h2o = 3: 2 h2s: so2 = 4: 4 and o2: h2o = 5: 4 h2s: so2 = 4: 6 and o2: h2o = 4: 4
Answers: 1
Chemistry, 22.06.2019 17:00
The arrangement of particles is most ordered in a sample of
Answers: 1
Chemistry, 22.06.2019 22:00
If a solution contains 3 moles/liter of sodium chloride (nacl, made of sodium ions and chloride ions), what is the osmolarity of this solution
Answers: 3
An isotope of cesium (cesium-137) has a half-life of 30 years. If 1.0 g of cesium-137 disintegrates...
German, 02.03.2020 20:10
Spanish, 02.03.2020 20:10