DON'T
BLOW
UP
THE
SCHOOL
100
A chemist observed bubbling and fizzing after adding an acid solution to a white powdery substance in a beaker. Which of the following can be inferred?
A. The acid boiled when poured into the beaker.
B. The acid and powder formed a new product.
C. A physical reaction produced a gas mixture.
D. A reaction occurred that produced heat.
B. The acid and powder formed a new product.
100
Which type of matter can be separated by physical means?
A. atom
B. element
C. compound
D. mixture
D. mixture
100
Which of the following results when hydrogen and chlorine chemically bond to form hydrogen chloride?
A. a mixture
B. a solution
C. a compound
D. a precipitate
C. a compound
100
Which color represents metals?
A. orange-pink B. blue C. green
A. orange-pink
100
The Alkali Metals are the most reactive metals because they have only _______ electron/s on their outer shell. A. 1
B. 2
C. 8
D. 7
A. 1
200
Which characteristic of an element determines its placement in the periodic table?
A. mass
B. size
C. number of neutrons
D. number of protons
D. number of protons
200
How many atoms are in one formula unit of the compound FeC5O5?
A. 5
B. 11
C. 15
D. 26
B. 11
200
When table salt (NaCl) is produced, which of the following BEST describes the actions of the sodium (Na) and chlorine (Cl) atoms?
A. Sodium atoms replace chlorine atoms.
B. Sodium and chlorine atoms mix together.
C. Sodium atoms dissolve in chlorine atoms.
D. Sodium and chlorine atoms bond chemically.
D. Sodium and chlorine atoms bond chemically.
200
Which color represents elements that have both properties of metals and nonmetals?
A. pink B. blue C. green
C. green
200
The vertical columns of the periodic table are called _________________.
A. Periods
B. Chemical symbols
C. Groups
D. Atomic Mass
C. Groups
300
Elements in the same column of the periodic table of the elements all
A. have the same number of protons.
B. share the same chemical properties with the same number of valence electrons.
C. have similar physical characteristics.
D. share the same number of neutrons.
B. share the same chemical properties with the same number of valence electrons.
300
What is the smallest unit of an element that retains the properties of that element?
A. electron
B. molecule
C. neutron
D. atom
D. atom
300
How are elements similar to those in the same group on the periodic table?
A. They have the same number of valence electrons.
B. They have the same number of electrons.
C. They have the same number of protons.
D. They have the same atomic mass.
A. They have the same number of valence electrons.
300
Which group on the periodic table is the most reactive? A. Group 1 B. Group 2 C. Group 3 D. Group 4
A. Group 1
300
Which of the following do not conduct heat or electricity well and are brittle.
A. Metals
B. Gases
C. Nonmetals
D. Metalloids
D. Metalloids
400
Where are the most reactive nonmetals located on the periodic table?
A. the uppermost complete row of the table
B. the rows at the bottom of the table connecting two sections
C. the column at the far-left side of the table
D. the second column from the right side of the table
D. the second column from the right side of the table
400
Which substance is composed of only one type of atom?
A. water
B. gold
C. salt
D. sugar
B. gold
400
Which choice best describes the properties of potassium (K), based on its position on the periodic table of elements?
A. A nonreactive metal
B. A highly reactive metal
C. A nonreactive nonmetal
D. A highly reactive nonmetal
B. A highly reactive metal
400
Students performed an investigation on how aluminum cans taken to a recycle center were able to be reused. They found out an aluminum can undergoes which type of change?
A. a physical change because the can is heated
B. a chemical change because new metal is formed C. a physical change because the material remains the same.
D. a chemical change because an old can is changed into a new can.
C. a physical change because the material remains the same.
400
Chlorine has 7 valence electrons. With what group of elements will chlorine most readily bond?
A group 1
B group 2
C group 16
D group 18
A group 1
500
Which of the following is an example of a compound?
A. copper
B. iron
C. carbon
D. water
D. water
500
Which term correctly describes all of the following materials? salt water, vinegar, bronze, air, beach sand?
A. compounds
B. mixtures
C. solutions
D. elements
B. mixtures
500
Where are the most reactive metals located on the periodic table?
A. the uppermost complete row of the table
B. the rows at the bottom of the table connecting two sections
C. the column at the far-left side of the table
D. the second column from the right side of the table
C. the column at the far-left side of the table
500
If 100 grams of vinegar and 5 grams of baking soda are poured in a container, a small amount of gas will be produced. What will the final mass of the products be if the gas is trapped in the container?
A. 100 grams
B. 104 grams
C. 105 grams
D. 110 grams
C. 105 grams
500
The horizontal columns of the periodic table are called ____________.
A. Periods
B. Chemical symbols
C. Groups
D. Atomic Mass
A. Periods