B) Cytosine and guanine.
The pairs are A/T and C/G.
Answer:
Li-F
Explanation:
Hydroxide is a negative ion, which can form ionic bonds with metals, but the bond in hydrogen and oxygen in hydroxide (OH-) is not ionic. It is covalent in nature.
C-C is clearly a covalent bond.
Li-F is an ionic bond.
Bond between H and Cl in H-Cl is covalent in nature. Because of the size difference hydrogen can not act as a cation. So it rather dissociates.
Answer:
I think is B -8
Explanation:
I don't know but I think so
Missing question:
a. C6H12O6
<span>b. CH3OH </span>
<span>c. C12H22O11 </span>
<span>d. NaOH.
</span>Answer is: d. NaOH.
b(solution) = 0,1 m.
ΔT = Kf ·
b(solution) · i.
Kf - the freezing point depression constant.
i - Van 't Hoff factor. Because dissociate on one cation and one anions, sodium hydroxide has i = 2, other molecules has covalent bonds (i = 1, do not dissociate on ions).
Because molality and the freezing point depression constant are constant, greatest freezing point lowering is solution with highest Van 't Hoff factor.
Because it can be balanced in an infinite number of ways so it would need to be rewritten in a simpler form.
