In gas the speed of sound is 343.2 meters per second, in liquid the speed of sound is 1,484 meters per second and in solids like steel it travels 5,120 meters per second.
The electron structures of boron and aluminum are similar because they share the same group, therefore they have the same amount of valence electron.
Explanation:
holes are left due to space left out the migrating electrons. they are positive charge carriers. if the electron moves in one direction, the holes appear to move in the opposite direction.
THE COMPLETE QUESTION IS:
Determine whether each cation is acidic or pH-neutral. For those cations that are acidic, write an equation that shows how the cation acts as an acid . a. NH+4 b. Na+ c. Co3+ d. CH2NH+3
Answer:
<em>a. Acidic</em>
<em>b. neutral</em>
<em>c. Acidic</em>
<em>d. Acidic</em>
Explanation:
a. NH4+ + H2O <==> NH3 + H3O+ (NH4+ is a conjugate acid of a weak base. Therefore it is acidic)
b. Neutral. Na+ is a cation of a strong base. Therefore it's pH is neutral.
c. Co(H2O)6³+ + H2O <==>CoH2O5(OH)²+ + H3O+
(Therefore Co+ is a weak acid since hydronium ion is formed.)
d. CH2NH3+ is a conjugate acid of a weak base. Therefore it is acidic.
