Unit 2 Test Review Question Preview (ID: 48011)
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Which of the following contains only monoatomic elements?
a) A. He, CO2, CH4, HNO3
b) B. HNO3, Ne, Pt, CH4
c) C. Ar, C, Co, Be
d) D. HNO3, CO2, H2O, H2SO4
Baking soda is used to make cookies. The chemical formula for baking soda is NaHCO3. Which term describes baking soda?
a) Monatomic element
b) Mixture
c) Solution
d) Compound/Molecule
Which option contains only compounds?
a) A. Au, Ni, Cu, Fe
b) B. NH3, KNO3, Hg, Ne
c) C. H2O, H2O2, H3, CO2
d) D. Na, NaCl, Pb, C6H12O6
How are the elements in the periodic table arranged?
a) A. Alphabetically
b) B. By their chemical symbol
c) C. By their chemical name
d) D. By their atomic number
Sulfuric acid (H2SO4) is not found on the Periodic Table of Elements because sulfuric acid is
a) A. An atom
b) B. An element
c) C. A mixture
d) D. A compound
The zig-zag line on the periodic table separates the
a) A. Transition metals from the noble gases
b) B. Metals and non-metals
c) C. Alkali metals from the alkaline earth metals
d) D. Noble gases from the halogens
A student observes a model of 2 bonded atoms. She is told the atoms are both nonmetals. What kind of bond are the atoms creating?
a) A. A covalent molecular bond
b) B. An ionic bond
c) C. An acidic bond
d) D. A salty bond
Which of the following is true?
a) A. Periods form horizontal rows and groups form vertical columns
b) B. Groups for horizontal rows and periods form vertical columns
c) C. Categories form horizontal rows, gases form vertical columns
d) D. Gases form horizontal rows, categories form vertical columns
A trumpet is a musical instrument made of brass. Brass is made when copper and zinc metals come together without a chemical reaction occuring. Which statement is the best description of brass?
a) Brass is a mixture
b) Brass is an element
c) Brass is a compound
d) Brass is a molecule
3. In what order are the regions arranged on the periodic table, reading left to right?
a) A. metals, metalloids, nonmetals
b) B. metalloids, metals, nonmetals
c) C. metals, nonmetals, metalloids
d) D. nonmetals, metalloids, metals
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