Aroma 305: chemistry of Aromatherapy Exam #1 Questions
with correct answers
Ethanol is both a polar and non-polar solvent.
True
False - ✔✔true
.Which of the following has a hydroxyl group attached to an aromatic or benzene
ring?
Phenols
Monoterpenes
Monoterpenols
Sesquiterpenols - ✔✔phenols
Which of the following is TRUE about an emulsifier?
It is soluble in polar solvents but is not soluble in non-polar solvents.
It is not soluble in polar solvents but is soluble in non-polar solvents.
It is soluble both in polar solvents and non-polar solvents.
It is not soluble in either polar solvents or non-polar solvents. - ✔✔Correct!
It is soluble both in polar solvents and non-polar solvents.
Which of the following is a monoterpene?
Chamazulene
,Linalool
Limonene
Patchoulol - ✔✔Limonene
Which particles are electrically charged? - ✔✔Electrons and protons
Which two particles will attract each other? - ✔✔Electron and proton
Which particles orbit the nucleus? - ✔✔Only electrons
Elements are made of indivisible particles called - ✔✔Atoms
Which two particles will repel each other? - ✔✔Electron and electron
or
protons and protons
Which is the smallest atom? - ✔✔Hydrogen
Which atom contains eight electrons and eight protons? - ✔✔Oxygen
Which atom has six electrons and six protons? - ✔✔Carbon
Atoms of the same element can have different properties. - ✔✔False
, Which particles are located in the nucleus and prevent positive charges from
repelling each other? - ✔✔Only neutrons
Describe the atomic structure of a carbon atom. - ✔✔six protons, six neutrons ,
six electrons. The first orbital is full, containing two electrons. The second orbital
contains four electrons, leaving four vacancies.
If an ice block melts in the sun, is this a chemical transformation? - ✔✔No it is a
change in state
Describe difference between elects and compound? - ✔✔an element is one type
of atom, a compound contains two or more types of atoms
subatomic particles - ✔✔protons, neutrons, electrons
could you take a proton from 2 different elements and tell them apart? -
✔✔Protons are the same to look it is the number of them that makes the
difference
which 3 atoms are found in e/o's? - ✔✔carbon, hydrogen, oxygen
where are protons in an atom? - ✔✔nucleolus
Were are electrons in an atom? - ✔✔in an orbital around it
Where are neutrons in an atom? - ✔✔in nucleolus
with correct answers
Ethanol is both a polar and non-polar solvent.
True
False - ✔✔true
.Which of the following has a hydroxyl group attached to an aromatic or benzene
ring?
Phenols
Monoterpenes
Monoterpenols
Sesquiterpenols - ✔✔phenols
Which of the following is TRUE about an emulsifier?
It is soluble in polar solvents but is not soluble in non-polar solvents.
It is not soluble in polar solvents but is soluble in non-polar solvents.
It is soluble both in polar solvents and non-polar solvents.
It is not soluble in either polar solvents or non-polar solvents. - ✔✔Correct!
It is soluble both in polar solvents and non-polar solvents.
Which of the following is a monoterpene?
Chamazulene
,Linalool
Limonene
Patchoulol - ✔✔Limonene
Which particles are electrically charged? - ✔✔Electrons and protons
Which two particles will attract each other? - ✔✔Electron and proton
Which particles orbit the nucleus? - ✔✔Only electrons
Elements are made of indivisible particles called - ✔✔Atoms
Which two particles will repel each other? - ✔✔Electron and electron
or
protons and protons
Which is the smallest atom? - ✔✔Hydrogen
Which atom contains eight electrons and eight protons? - ✔✔Oxygen
Which atom has six electrons and six protons? - ✔✔Carbon
Atoms of the same element can have different properties. - ✔✔False
, Which particles are located in the nucleus and prevent positive charges from
repelling each other? - ✔✔Only neutrons
Describe the atomic structure of a carbon atom. - ✔✔six protons, six neutrons ,
six electrons. The first orbital is full, containing two electrons. The second orbital
contains four electrons, leaving four vacancies.
If an ice block melts in the sun, is this a chemical transformation? - ✔✔No it is a
change in state
Describe difference between elects and compound? - ✔✔an element is one type
of atom, a compound contains two or more types of atoms
subatomic particles - ✔✔protons, neutrons, electrons
could you take a proton from 2 different elements and tell them apart? -
✔✔Protons are the same to look it is the number of them that makes the
difference
which 3 atoms are found in e/o's? - ✔✔carbon, hydrogen, oxygen
where are protons in an atom? - ✔✔nucleolus
Were are electrons in an atom? - ✔✔in an orbital around it
Where are neutrons in an atom? - ✔✔in nucleolus
