questions with correct answers \| \| \|
The water ion theory of acids and basis is attributed to:
\| \| \| \| \| \| \| \| \| \|
a. Lewis
\|
b. Bronsted
\|
c. Arrhenius
\|
d. Pauling
\|
e. Pearson - CORRECT ANSWERS ✔✔c
\| \| \| \| \|
This is a radioactive particle that weighs almost the same as a helium atom.
\| \| \| \| \| \| \| \| \| \| \| \| \|
a. x-ray
\|
b. alpha ray
\| \|
c. gamma ray
\| \|
d. beta ray
\| \|
e. UV ray - CORRECT ANSWERS ✔✔b
\| \| \| \| \| \|
This is a sulfur containing ion that does not react with sulfuric acid.
\| \| \| \| \| \| \| \| \| \| \| \|
a. sulfide
\|
b. sulfite
\|
c. sulphate
\|
,d. thiosulfate
\|
e. all of the given - CORRECT ANSWERS ✔✔c
\| \| \| \| \| \| \| \|
A mole of a substance:
\| \| \| \|
a. contains Avogrado's number of particles
\| \| \| \| \|
b. weighs the same as its atomic weight/molecular weight expressed in grams
\| \| \| \| \| \| \| \| \| \| \|
c. contains the same number of particles as 12g of carbon
\| \| \| \| \| \| \| \| \| \|
d. A & B
\| \| \|
e. All of the above - CORRECT ANSWERS ✔✔e
\| \| \| \| \| \| \| \|
Which of the following properties of matter is dependent on the quantity of
\| \| \| \| \| \| \| \| \| \| \| \| \|
matter present? \|
a. flammability
\|
b. volume
\|
c. boiling point
\| \|
d. reactivity
\|
e. density - CORRECT ANSWERS ✔✔b
\| \| \| \| \|
An attraction of molecule by a magnetic field due to completely paired
\| \| \| \| \| \| \| \| \| \| \| \|
electrons.
a. diamagnetism
\|
b. paramagnetism
\|
c. dia-para magnetism
\| \|
d. ferromagnetism
\|
,e. none of the given - CORRECT ANSWERS ✔✔a
\| \| \| \| \| \| \| \|
Which of the following substances is pure?
\| \| \| \| \| \|
a. 5% dextrose
\| \|
b. table sugar
\| \|
c. blood
\|
d. rubbing alcohol
\| \|
e. salt solution - CORRECT ANSWERS ✔✔b
\| \| \| \| \| \|
An atom with an atomic number of 15 and a mass number of 29 has ___
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|
neutrons.
a. 14
\|
b. 15
\|
c. 29
\|
d. 39
\|
e. 54 - CORRECT ANSWERS ✔✔a
\| \| \| \| \|
Two electrons occupying the same orbital differ in their:
\| \| \| \| \| \| \| \|
a. principle quantum number
\| \| \|
b. azimuthal quantum number
\| \| \|
c. magnetic quantum number
\| \| \|
d. spin quantum number
\| \| \|
e. angular momentum number - CORRECT ANSWERS ✔✔d
\| \| \| \| \| \| \|
, What particle/s account for most of the mass of an atom?
\| \| \| \| \| \| \| \| \| \|
a. proton
\|
b. electron
\|
c. neutron
\|
d. a and b
\| \| \|
e. a and c - CORRECT ANSWERS ✔✔e
\| \| \| \| \| \| \|
Which of the following properties of elements decreases form left to right of
\| \| \| \| \| \| \| \| \| \| \| \| \|
the periodic table?
\| \|
a. atomic size
\| \|
b. electron affinity
\| \|
c. electronegativity
\|
d. non-metallic property
\| \|
e. ionization potential - CORRECT ANSWERS ✔✔a
\| \| \| \| \| \|
Which of the following processes is a physical change?
\| \| \| \| \| \| \| \|
a. distillation of water
\| \| \|
b. digestion of food
\| \| \|
c. neutralization of an acid by a base
\| \| \| \| \| \| \|
d. fermentation of coconut water
\| \| \| \|
e. combustion of methane - CORRECT ANSWERS ✔✔a
\| \| \| \| \| \| \|