WorksheetsBasics Of Chemistry
Total questions: 15
Worksheet time: 8mins
Inorganic chemistry is the study of substance that do not contain the element carbon, but may contain which element?
silicon
oxygen
hydrogen
nitrogen
A(n) ___________________ is a substance that cannot be broken down into simpler substance without loss of identity.
compound
ion
mixture
element
Chemically joining two or more atoms in definite proportions forms a(n):
acid
molecule
mixture
solvent
A(n)____________________ is a stable physical mixture of two or more substances.
solution
emulsion
compound
element
A(n)_____________________ is a substance dissolved into a solution.
solvent
alkali
solute
acid
Liquids that are not capable of being mixed into stable solutions are considered:
emulsions
suspensions
miscible
immiscible
Solutions that contain undissolved particles that are visible to the naked eye are known as:
suspensions
mixtures
solutes
emulsions
A(n)___________________________ is a mixture of two or more immiscible substances united with the aid of binder.
suspension
emulsion
mixture
solution
A(n)___________________ is a substance that acts as a bridge to allow oil and water to mix or emulsify.
reducing agent
surfactant
anion
cation
The tail of a surfactant molecule is oil-loving or:
miscible
immiscible
lipophilic
hydrophilic
A molecule that carries an electric charge is called an:
alkaline
acid
atom
ion
Alpha Hydroxy acids (AHAs):
are used to exfoliate the skin
feel slippery on the skin
are also known bases
are used to soften the hair
A exothermic chemical reaction:
produces a positive electrical charge
produces a negative electrical charge
absorb heat
releases heat
A substance that has a pH below 7.0 is considered to be:
conbustible
nuetral
acidic
alkaline
Alkanolamines are often used in the place of ammonia because they:
produce less odor
are much less expensive
have a better texture
are much more effrctive
