Answer:
<h2>
C)Four times</h2>
Explanation:
<h3>Because kinetic energy is proportional to the square of the velocity, when velocity is doubled, kinetic energy is quadrupled.</h3>
1 moles -------- 6.02x10²³ atoms
?? moles ----- 7.4x10²¹ atoms
moles = 7.4x10²¹ / 6.02x10²³
= 0.01229 moles
hope this helps!
a) two water molecules - hydrogen bond
b) amine and carbonyl - hydrogen bond
c) protonated amine and deprotonated carboxylic acid - ionic bond
Explanation:
You may find the diagram of the chemical structures and the interactions in the attached picture.
Hydrogen bonds are formed when hydrogen is between two electronegative elements such as oxygen, nitrogen or fluorine.
Ionic bonds are formed when one element donates electronic charge from their valence electrons to complete the valence shell of other elements in such a way that results two ions with "+" and "-" charges.
Learn more about:
hydrogen bonds
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