Which of the following compounds has hydrogen bonds between its molecules?
HF
HBr
HCI
HI
Correct answer is A
No explanation has been provided for this answer.
covalent
dative
ionic
metallic
Correct answer is C
No explanation has been provided for this answer.
Hibiscus and croton are examples of
Ground covers
Hedge plants
Lawn plants
Avenue trees
Correct answer is B
No explanation has been provided for this answer.
Which of the following statements about sodium is not true?
Na+ is smaller in size than Na
Na is smaller in size than Na+
Na+ has fewer electrons than Na
The effective nuclear charge in Na+ is greater than in Na
Correct answer is B
No explanation has been provided for this answer.
Which of the following properties of atoms generally increases down a group in the periodic table?
Electron affinity
Electronegativity
Ionic radius
lonization energy
Correct answer is C
No explanation has been provided for this answer.