Think you’ve got your head wrapped around Chemistry Basics? Put your knowledge to
the test. Good luck — the Stickman is counting on you!
Q. Which of the following is a pure substance that can be separated from other matter and forms the building blocks of chemical compounds?
The nucleus of an atom
An atom
An element
A molecule
None of the above
Q. Which of the following is not a chemical compound?
Fe
FeS
H2O
CO2
Not enough information is given
Q. Which subatomic particle is neutral?
Protons
Neutrons
Electrons
Nucleus
(A) and (B)
Q. Which of the following elements is not a member of the same chemical family as beryllium?
Magnesium
Calcium
Radium
Lithium
None of the above
Q. The nucleus of a potassium atom contains ______ protons.
17
18
19
20
Not enough information is given
Q. Based on what we know about familial trends, we would expect helium to share chemical properties with which of the following elements?
Hydrogen
Carbon
Fluorine
Oxygen
None of the above
Q. Which of the following statements regarding electrons is false?
Electrons are smaller than both protons and neutrons.
Electrons are negatively charged subatomic particles.
Electrons are responsible for much of the chemistry that we "see."
Electrons exist is what scientists call "electron clouds" which surround the nucleus in an atom.
Electrons are found with protons in the nucleus of the atom.
Q. Chemical equations are used by chemists to represent...
Physical change
Changes of state
Chemical reactions
The rate of chemical change
All of the above
Q. In the chemical equation written below, which chemical compound is a product of the reaction? HCl + NaOH → H2O + NaCl
H2O
HCl
NaOH
Na
None of the above
Q. Which of the flowing statements regarding the chemical equation written below is false? HCl + NaOH → H2O + NaCl
NaCl is a product of the reaction.
HCl is a reactant.
Na represents the element sodium.
NaOH is a product of the reaction.
Both (A) and (D) are false.