Chemistry, 13.07.2019 02:30 cassiegagnier73
Thallium has two stable isotopes, 203tl and 205tl. knowing that the atomic weight of thallium is 204.4, which isotope is the more abundant of the two? explanation
Answers: 1
Chemistry, 22.06.2019 08:30
Identify one disadvantage to each of the following models of electron configuration: -dot structures -arrow and line diagrams -written electron configurations type in your answer below. (answer) -dot structures do not show the distribution of electrons in orbitals and take up a lot of space. -arrow and line diagrams take up a lot of space and make it difficult to count electrons. -written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.
Answers: 3
Chemistry, 22.06.2019 16:30
For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.
Answers: 2
Chemistry, 22.06.2019 18:30
When the chemicals iron sulfide (fes) and hydrochloric acid (hcl) are combined, bubbles appear from the mixture. 1. does the appearance of bubbles indicate a physical or chemical change? 2. why do the bubbles indicate this change? 3. what property is this?
Answers: 1
Thallium has two stable isotopes, 203tl and 205tl. knowing that the atomic weight of thallium is 204...
Mathematics, 17.12.2020 23:30
English, 17.12.2020 23:30
English, 17.12.2020 23:30
Mathematics, 17.12.2020 23:30
Mathematics, 17.12.2020 23:30
English, 17.12.2020 23:40
Mathematics, 17.12.2020 23:40
Chemistry, 17.12.2020 23:40
Mathematics, 17.12.2020 23:40
Mathematics, 17.12.2020 23:40
Chemistry, 17.12.2020 23:40