Elements And Compounds Question Preview (ID: 36042)


Vocab Quiz. TEACHERS: click here for quick copy question ID numbers.

What are the most common elements in the oceans?
a) oxygen and carbon
b) hydrogen and oxygen
c) nitrogen and oxygen
d) aluminum and silicon

Pure substance made of one kind of atom and CANNOT be broken down is
a) mixture
b) compound
c) element
d) atom

What holds compounds together?
a) physical bonds
b) chemical bonds
c) duct tape
d) rope

Pure substance made up of two or more kinds of elements that have been chemically joined.
a) compound
b) element
c) mixture
d) reaction

Smallest part of a compound is a
a) quark
b) atom
c) molecule
d) proton

Atom is to element as molecule is to
a) product
b) subscript
c) coefficient
d) compound

What are the most common elements in the Earth's crust?
a) hydrogen and helium
b) aluminum, silicon, oxygen
c) nitrogen and oxygen
d) hydrogen and oxygen

A combination of chemical symbols used to represent a compound
a) chemical equation
b) chemical reaction
c) chemical sentence
d) chemical formula

Only ______________ are found on the periodic table.
a) mixtures
b) elements
c) compounds
d) formulas

The most common elements in the atmosphere are
a) hydrogen and helium
b) nitrogen and oxygen
c) hydrogen and oxygen
d) silicon and oxygen

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