An isotope is when an element has the same number of protons and different number of neutrons. That is why the atomic mass changes.
Answer:
orbital
Explanation:
electrons are found in an orbital
I believe that the answer to the question provided above is light energy is trapped, and by certain enzymes then transformed to chemical energy.
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As i am reading the problem, i notice they give two concentrations (M), a volume and asking for the other volume; this should be a hint that we need to use the dilution formula---> M1V1 = M2V2
M1= 2.55 M
V1= ?
M2= 0.75 M
V2= 125 mL
now, we plug in the values into the formula
(2.55 x V1) = (0.75 x 125)
V1= 36.8 mL