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Aromatherapy Final WITH QUESTIONS AND 100% CORRECT ANSWERS
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EUNICEAROMA 305: Aromatherapy Chemistry WITH 100% SURE ANSWERS
Terms in this set (426)
What is Chemistry? The study of the composition, properties, and transformations of substances
about how many naturally occurring 105
fundamental substances are there
naturally occurring fundamental elements
substances are better known as. . .
what are the three subatomic particles of proton, neutron, and electrons
matter that make up an atom
what atom is the smallest hydrogen
what makes hydrogen atoms unique from it has no neutrons in its nucleus
other atoms
elements are made up of indivisible atoms
particles called
when do chemical changes occur in atoms when combined, separated, or rearranged
an ice block melts in the sun, is this an no, because the composition of ice does not change, ice can become water and
example of chemical transformation? water become ice without a molecular change.
what is the difference between elements elements contain single atoms, whereas compounds are made up of more than one
and compounds type of atom
what is the charge of a neutron and where neutral, nucleus
is it located in the atom
what is the charge of a proton and where is positive, nucleus
it located
what is the charge of an electron and negative, in the orbital rings
where is it located
what model describes the types of sub- Ernest Rutherford
atomic particles contained in an atom
although each subatomic particle are manifest the characteristic of any element
considered building blocks, alone, they do
not. . .
what three atoms are the main types of carbon, hydrogen, oxygen
atoms found in essential oil molecules
1/5
, what function do neutrons appear to have to prevent protons in the nucleus from repelling one another
in an atoms
what is the difference between hydrogen, the primary difference is the number of subatomic particles associated with each.
carbon, and oxygen Hydrogen has 1P, 0N, 1E; carbon has 6P, 6N, 6E: and oxygen has 8P, 8N, 8E.
an element is a substance that cannot be broken down into other substances
matter exist in three phases solid, liquid, gas
a chemical change in a substance results in the formation of a new substance
the atomic number is characterized by the number of protons in the nucleus
T/F: there is the same number of protons as true
there are electrons
atomic mass equals the number of protons and the number of neutrons in the nucleus
atomic number and atomic mass are true
virtually the same thing
T/F: Oxygen atoms have six electrons in true
their outer orbital.
T/F: Neutrons are small negatively charged false, neutrons are neutral and found in the nucleus
particles that orbit the nucleus of any atom.
T/F: Atoms are found in every living thing. true
T/F: Hydrogen atoms have no neutrons. true
T/F: Compounds are molecules containing false, compounds are made of two or more different atoms
several atoms of the same type.
Choose the correct answer below to 6,8,6
complete this sentence correctly: Carbon
atoms have a total of ___ electrons. Four of
these are located in the outer orbital.
Oxygen by contrast, has a total of ___
electrons, ___ of which are in the outer
orbital.
T/F: Everything that exists is made up of false, WTF are virtuons
virtuons, which are imaginary particles.
T/F: Neutrons will attract electrons false, neutrons will not affect electrons
The gas oxygen is an element. The liquid Oxygen gas is an element because it contains only one type of atom Water is a
water is a compound. describe what the compound because it contains two different types of atom.
difference is between compounds and
elements.
Which subatomic particle has no attractive neutrons
or repulsive effect on electrons?
Explain why most atoms bond together to to fill the vacancies left in their outer orbitals, making themselves more stable
form molecules
what elements have a full outer shell helium and neon
(orbital)
what effect does the full outer shell have The full outer orbital makes them unreactive because they do not need to react with
on the reactive capabilities of atoms of this other atoms to achieve stability
element
2/5
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