The answer is A: Between 50 and 5,000 amino acids
<span>A carbon - 12 atom and a
regular carbon atom would have the same number of protons which is 6. So a
carbon - 12 atom would have 6 protons. Both, however, would differ in the
number of neutrons. Carbon - 12 atom has 6 neutrons. To determine the mass
defect of a carbon - 12 atom, we have to add the total mass of protons and the
total mass of neutrons and subtract the known mass of a carbon - 12 atom. That
would be like this.<span>
6
(1.00728 amu) + 6 (1.00866 amu) = x
<span>6.04368
amu<span> + 6.05196 amu = x</span></span>
12.09564
amu = x
Then
subtract it with 12 amu to get the defect mass
12.09564
amu - 12.00000 amu = y
0.09564
amu = y
<span>So the
defect mass would be 0.09564 amu.</span></span></span>
Explanation:
Step 1: Write the balanced "molecular" equation:

Step 2: H₂S is written in molecular form. Consult the solubility and net ionic equation rules on the information page to determine which of the other substances will dissociate:

yes no yes
Step 3: Dissociate all soluble salts, strong acids, and strong bases (except calcium hydroxide). Leave together all "not soluble" salts and weak acids or bases:

Step 4: Cross out "spectator ions" that appear on both sides of the reaction (these ions do not participate in the chemistry) and rewrite the "net" reaction using the smallest possible coefficients:
