<h3><u>Answer;</u></h3>
C) Covalent bonds are generally weaker than ionic bonds because they overlap electrons to fill their outer shell.
<h3><u>Explanation;</u></h3>
- <em><u>Covalent bond is a type of bond that results from the sharing of electrons between two non-metal atoms. </u></em>
- <em><u>Ionic bond on the other is a type of bond that results from the transfer of electrons between metal atoms and non metal atoms, where a metal atom looses electrons and a non-metal atom gains electrons.</u></em>
- <em><u>The amount of energy required to break an given bond determines how strong a particular bond is.</u></em> Ionic bonds require more energy to break as compared to covalent bond and therefore they are stronger than the covalent bonds.
An element called Silica.
Answer:
230.53°
Explanation:
α = angle in rad / t^2
t =2mins = 2 × 60 = 120sec.
α = angle in rad / 2^2
α = angle in rad / 16
15+4(2) = angle in rad /4
23 = angle/4
23× 4 = angle in radian
92 = angle in radian
But π rad = 180°
1 rad = 180 /π
Therefore
92 rad = 92 ×180/π = 5270.53°
This value is far more so we subtract from 360° continuously till we get a value less than 360°
5270.53- (360×14) =5270.53- 5040
230.53°
Answer:
a) Ink X is likely to be pure because it only contain 1 spot.
b) The chromatography tell us about ink Y that it is a mixture as it contain more than 1 spot.
c) The three different spots are separated out from ink Y at different heights beacaus different substance have different solubility.
