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Unit Test 1 Review- Matter And Chemistry Part II
Test Description: Part II of the Unit Test 1 Review- Matter and Chemistry
Instructions: Answer all questions to get your test result.
1) Identify the Chemical Equation that is balanced
A
Fe + O2 Yields 4Fe2O3
B
2H2+O2 Yields 2H2O
C
2N2 +H2 Yields 4NH3
D
Na +Cl2 Yields 2NaCl
2) Which property of an element allows for it to be stretched into wire?
A
Conductivity
B
Reactivity
C
Ductility
D
Malleability
3) a mixing of two chemicals resulting in a change in temperature is:
A
a chemical change because of the change in temperature
B
a physical change because of the change in temperature
C
a chemical change because of the mixing of the chemicals
D
a physical change because of the mixing of the chemicals
4) How is a substance best classified if its atoms are arranged in a particular way?
A
compound
B
gas
C
mixture
D
element
5) Using the periodic table, how would one identify the atomic number of an element?
A
by looking above its chemical symbol
B
by identifying its periodic group
C
by looking below its chemical symbol
D
by looking at is period
6) How would one find the atomic mass of an element?
A
subtracting the electrons from the protons
B
adding the electrons and the protons
C
subtracting the neutrons from the protons
D
adding the protons and the neutrons
7) Where on the periodic table would one look to find the Metalloids?
A
Periodic Group 7
B
the far left side
C
the far right side
D
along the zigzag line
8) Which of the following explains why I have to replace the lock on the door to my building?
A
it is ductile
B
It is malleable
C
it is an excellent conductor of electricity
D
it suffers from corrosion
9) What is the name giving to the elements in group 17 of the periodic table?
A
halogens
B
transition metals
C
actinides
D
noble gases
10) Which group of elements is useful in the making of glowing electric lights
A
noble gases
B
halogens
C
alkali Earth metals
D
metalloids
*select an answer for all questions
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