Chemistry, 17.10.2019 21:10 GreenHerbz206
Fill in the numbers to interpret the isotope symbols. 92u238 has protons, neutrons, and electrons. 86rn222 has protons, neutrons, and electrons.
Answers: 2
Chemistry, 22.06.2019 01:40
Darla claims that the first periodic table developed by mendeleev was not completely accurate, so it is not useful at all. harmony argues that it establish the periodic table we use today, making it more credible. who is correct and why? darla is correct, because a model that has any mistakes should be thrown out. darla is correct, because a good model would not need to change. harmony is correct, because mendeleev’s model had all of the information correct in the first version. harmony is correct, because mendeleev’s model made predictions that came true.
Answers: 1
Chemistry, 22.06.2019 10:10
How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?
Answers: 1
Chemistry, 22.06.2019 10:50
8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm
Answers: 1
Chemistry, 22.06.2019 16:00
The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride
Answers: 1
Fill in the numbers to interpret the isotope symbols. 92u238 has protons, neutrons, and electrons. 8...
Chemistry, 15.04.2021 04:00
Mathematics, 15.04.2021 04:00
Mathematics, 15.04.2021 04:00
Mathematics, 15.04.2021 04:00
Biology, 15.04.2021 04:00
Mathematics, 15.04.2021 04:00
Social Studies, 15.04.2021 04:00
Mathematics, 15.04.2021 04:00
Mathematics, 15.04.2021 04:00