<span>normally when you heat a substance it will expand.when you take a graph between temperature and volume it will increase linearly.at some it will be saturated or become stable. all the material have a melting point or breakdown point.after this experiment marshall will conclude that substance's volume increase according to heat up to a particular temperature.</span>
Answer:
The atomic nucleus is the small, dense region consisting of protons and net at the center of an atom.
Explanation:
The atomic nucleus is the small, dense region consisting of protons and neutrons at the center of an atom, discovered in 1911 by Ernest Rutherford based on the 1909 Geiger–Marsden gold foil experiment. ... Protons and neutrons are bound together to form a nucleus by the nuclear force.
The moles of carbon that are in the sample of 21.45 moles of heptane(C₇H₁₆) is 150.15 moles
<u><em>calculation</em></u>
moles of carbon = moles of heptane × number of C atom
number of C atom in heptane = 1 ×7 = 7 atoms
moles is therefore = 21.45 moles × 7 =150.15 moles
They both melt according to my head
Pangea was a large super continent that existed millions of yearts ago
hope this helps!
