Chemistry, 31.05.2020 03:58, izzygewin47821
Which statements describe chemical changes? Check all that apply. 1.They change a substance’s properties. 2.They change a substance’s identity. 3.They can usually be reversed. 4.They keep a substance’s arrangement of atoms the same. 5.They change a substance into a different substance.
Answers: 2
Chemistry, 22.06.2019 00:00, ashleyjaslin
Which type of bonding involves the complete transfer of a valence electron from a less electrogrative atom to a more electronegative one
Answers: 1
Chemistry, 22.06.2019 03:30, acaciacoats
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 10:30, kylemartinez13
Which characteristics can be used to differentiate star systems? check all that apply.
Answers: 2
Chemistry, 22.06.2019 17:30, kiaramccurty
What type of organic molecule comprises the majority of a potato?
Answers: 1
Which statements describe chemical changes? Check all that apply. 1.They change a substance’s proper...
Health, 24.02.2021 18:50
Health, 24.02.2021 18:50
Mathematics, 24.02.2021 18:50
Mathematics, 24.02.2021 18:50