C\(_6\)H\(_{12}\)O\(_6\) What is the molar mass of the compound above? [ H=1, C=12, O=16 }
45
61
180
123
244
Correct answer is C
The compound above is identified as glucose
Carbon - 12 \(\times\) 6 atoms present
Hydrogen - 1 \(\times\) 12 atoms present
Oxygen - 16 \(\times\) 6 atoms present
= 72 + 12 + 96
= 180
hydrogen, oxygen
Hydrogen, tetraoxosulphate (VI) ion
oxygen, hydrogen
sulphur, hydrogen
sulphur, oxygen
Correct answer is C
No explanation has been provided for this answer.
A neon atom is chemically nonreactive because
the electrons at the outermost shell is partially filled
the number of protons equals the number of electrons
the outer electron shell is completely filled
there are equal number of protons and neutrons in its nucleus
there are no elections at the outermost shell
Correct answer is C
No explanation has been provided for this answer.
alpha particle emission
endothermic reaction
nuclear fission
nuclear fusionthermal dissociation
Correct answer is C
No explanation has been provided for this answer.
Which of these compounds has the greatest ionic character?
AlF3
BF2
CF4
CsF
NaF
Correct answer is E
Sodium fluoride because, of all the metals listed, sodium is the most reactive while fluorine is the most reactive non-metal, distance between sodium and fluorine in the periodic table also is a factor