Which of the following chemical symbols represents the element silver?
a. s
b. ag
...
Chemistry, 12.10.2019 15:50 Niktorres560Luckynik
Which of the following chemical symbols represents the element silver?
a. s
b. ag
c. au
d. si
Answers: 2
Chemistry, 22.06.2019 03:30
The atomic radius of sodium is 186 pm and of chlorine is 100 pm. the ionic radius for na+ is 102 pm and for cl– is 181 pm. in going from na to cl in period 3, why does the atomic radius decrease while the ionic radius increases? a. the inner electrons in the sodium cation shield its valence electrons more effectively than the inner electrons in the chloride anion do. b. the inner electrons shield the valence electrons more effectively in the chlorine atom than in the chloride anion. c. the outermost electrons in chloride experience a smaller effective nuclear charge than those in the sodium cation do. d. the outermost electrons in chloride experience a larger effective nuclear charge than those in the sodium cation do. e. monatomic ions are bigger than the atoms from which they are formed.
Answers: 2
Chemistry, 22.06.2019 10:10
For the reaction, 4 a(g) + 3 b(g) => 2 c(g), the following data were obtained at constant temperature. experiment initial[a],mol/l initial [b],mol/l initial rate,m/min 1 0.200 0.150 5.00 2 0.400 0.150 10.0 3 0.200 0.300 10.0 4 0.400 0.300 20.0 which of the following is the correct rate law for the reaction? 1. rate = k[a]2[b]2 2. rate = k[a][b] 3. rate = k[a]2[b] 4. rate = k[a][b]2
Answers: 3
Chemistry, 22.06.2019 12:00
Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.
Answers: 1
Mathematics, 27.05.2020 22:06
Mathematics, 27.05.2020 22:06
Biology, 27.05.2020 22:06
Chemistry, 27.05.2020 22:06
World Languages, 27.05.2020 22:06
Mathematics, 27.05.2020 22:06
Mathematics, 27.05.2020 22:06
English, 27.05.2020 22:06
Mathematics, 27.05.2020 22:06
Mathematics, 27.05.2020 22:06
Mathematics, 27.05.2020 22:06
History, 27.05.2020 22:06