The nucleus of a atom contains the protons and the neutrons all most all of the atoms mass is weigh by the protons and the neurons.
Reactant concentration, the physical state of the reactants, and surface area, temperature, and the presence of a catalyst are the four main factors that affect reaction rate.
<span>the right answer is .C )<span>Matthew was right because RNA is single-stranded while DNA is double-stranded.</span></span>
Answer:
Carbon dioxide is a gas at room temperature
T½=18.72days
therefore t¾=18.72+½ of 18.72
we have 18.72+9.36=28.08days
