Chemistry Review 3 Question Preview (ID: 601)


Review For Chapters 3 & 5. TEACHERS: click here for quick copy question ID numbers.

This category of elements is also known as semiconductors.
a) metals
b) metalloids
c) colloids
d) nonmetals

This category of elements has brittle and nonmalleable solids.
a) metals
b) metalloids
c) colloids
d) nonmetals

This technique for separating a mixture is used to separate water into the elements of hydrogen and oxygen.
a) Magnet
b) Filter
c) Electrolysis
d) Distillation

This technique for separating a mixture is used to separate crude oil into its components.
a) Centrifuge
b) Electrolysis
c) Filter
d) Distillation

This technique for separating a mixture is used to separate heavier blood cells from plasma.
a) Centrifuge
b) Electrolysis
c) Filter
d) Distillation

This technique for separating a mixture is used to separate particles in a suspension.
a) Centrifuge
b) Electrolysis
c) Filter
d) Distillation

In nature, the element __________ is needed to make proteins.
a) aluminum
b) carbon
c) nitrogen
d) iron

The element that has 6 protons within its atom is__________ .
a) Hydrogen
b) Carbon
c) Beryllium
d) Helium

An element that has 8 valence electrons would be__________.
a) reactive
b) nonconductive
c) unreactive
d) dull

An element that has an atomic number of 4 would be found in which period on the periodic table?
a) Period 1
b) Period 4
c) Period 2
d) Period 5

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