Solar Energy: source Sun
Nuclear Energy: source:fission of Uranium nucleus
Sound Energy: source: Loudspeakers
Answer:
Ethanol
Explanation:
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Since the hexanes and the ethyl acetate are mostly composed by C-C, C-H and for the ester C-O bonds which are apolar, just the ethanol which has one O-H bond could be classified as polar, allowing H-bridges to be present.
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Answer:
Isotope (ahy-suh-tohps)are atom with the same number of protons but differing numbers of neutrons.In other words,isotopes have different atomic weights.Isotopes are different forms of a single element.
Explanation:
2.11x10^24 Ca atoms
In order to find the amount of atoms we must use Avogadro’s number, 6.022 x 10^23
Since we have moles, 3.5 the equation would look like this
3.5 moles Ca x 6.022x10^23/1 = 2.1077 x 10^24, which we round to 2.11 x 10^24 atoms of Ca
