Protons are a cluster in the centre of an atom and electrons are orbiting around the protons
The type of chemistry that allows the anthropologist to find out the nature of the substance in a mummy's wrap would be analytical chemistry. It is a branch of chemistry which deals with obtaining and processing information pertaining to the composition and the structure of the subject in question. It deals with apparatus and techniques to identify, separate and quantify a substance. It is the science of the determination of a substance and how much is present. By the analytical techniques, the anthropologist could hypothesize what is the substance of the wrap and its physical and chemical properties.
Answer:
The order of increasing bond lenght :
-C≡C < -C=C < -C-C
Explanation:
Bond length is defined as average distance between two nuclei of bonded atoms in a molecule.Bond length is inversely proportional to the number of bonds present between two atoms.
...[1]
Bond energy is defied as amount of energy required to break apart the bond of 1 mole of molecule into their individual atom.
Bond energy is directly proportional to the number of bonds present between two atoms.
..[2]
From [1] and [2]:
Bond : Energy (kJ/mol)
-C-C : 346
-C=C : 612
-C≡C : 835
The order of decreasing bond energy :
835 kJ/mol > 612 kJ/mol > 346 kJ/mol
The order of increasing bond lenght :
-C≡C < -C=C < -C-C
Answer:
Aristotle believes that all material substances are matter and form.
Explanation:
If you remember from the four causes, the matter is one cause and form is another cause. Substance theory says that substances are the ultimate things in the universe