Which observations show that a change in state of matter has occurred? wood burns, producing gas and an ashy residue. overnight, dew forms on the grass. an alkali indicator changes color when added to a cleaner. vinegar has a strong smell

When dew forms, it’s a change in a state of matter from water vapor to liquid. When vinegar evaporates, it also represents a change in state. The reason we can smell vinegar in a bottle is because it’s evaporating.

So the answers are

B: Overnight, dew forms on the grass.

D: Vinegar has a strong smell

answer; a male inherits only one allele of the x-linked gene controlling hair color;

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.