Answer:
Each isotope of oxygen contains 8 protons, but differs in the number of neutrons. An isotope number is a shorthand representation of its mass. Because protons and neutrons are roughly equal in mass, an isotope's number is equal to the sum of its protons and neutrons.
Explanation:
Isotopes are atoms of the same element that have different numbers of neutrons but the same number of protons and electrons. The difference in the number of neutrons between the various isotopes of an element means that the various isotopes have different masses.
A lipid<span> is an organic compound such as </span>fat<span> or oil. Organisms use </span>lipids<span> to store energy, but </span>lipids<span> have other important roles as well. </span>Lipids<span> consist of </span>repeating units<span> called </span>fatty acids<span>. There are two types of </span>fatty acids<span>: </span>saturated fatty acids<span> and</span><span>unsaturated fatty acids</span>
Answer:
C. Smoking damages the cilia in the respiratory system
Answer:
Usually light years, or parsecs.
Explanation:
Answer:
standard entropy of vaporization of ethanol = 142.105 J/K-mol
Explanation:
given data
enthalpy of vaporization of ethanol = 40.5 kJ/mol = 40.5 × 
J/mol
entropy of vaporization of ethanol boiling point = 285 K
to find out
standard entropy of vaporization of ethanol
solution
we get here standard entropy of vaporization of ethanol that is expess as
standard entropy of vaporization of ethanol ΔS = 
.............1
here ΔH is enthalpy of vaporization of ethanol and T is temperature
put value in equation 1
standard entropy of vaporization of ethanol ΔS = 
standard entropy of vaporization of ethanol = 142.105 J/K-mol
