11th Grade Chemistry Question Preview (ID: 57411)


Chapter 2 Test Vocabulary. TEACHERS: click here for quick copy question ID numbers.

An process that changes the physical properties of a substance without changing its identity.
a) physical change
b) chemical change
c) endothermic
d) exothermic

A substance that is made up of only one kind of particle and has uniform composition.
a) pure substance
b) mixture
c) formula
d) entropy

A property of matter that can be measured or observed without changing the identity of the matter.
a) physical property
b) chemical property
c) endothermic
d) exothermic

Anything that occupies space and has mass.
a) matter
b) formula
c) heat
d) energy

Two or more substances physically combined with no definite proportions.
a) mixture
b) compound
c) element
d) atom

Two or more covalently bonded atoms found as a distinct unit.
a) molecule
b) element
c) mixture
d) physical property

A mixture of two or more distinct substances, evenly blended.
a) homogeneous
b) heterogeneous
c) exothermic
d) endothermic

A mixture composed of two or more distinct substances, unevenly blended.
a) heterogeneous
b) homogeneous
c) endothermic
d) exothermic

Thermal energy in transit from one object to another.
a) heat
b) temperature
c) energy
d) entropy

A combination of chemical symbols and subscripts that tells the number and kinds of elements in a compound.
a) formula
b) mixture
c) compound
d) element

The measure of randomness or disorder in a system.
a) entropy
b) formula
c) heat
d) temperature

A process that releases heat energy.
a) exothermic
b) endothermic
c) homogeneous
d) heterogeneous

The ability to do work.
a) energy
b) heat
c) entropy
d) physical property

A process that absorbs heat energy
a) endothermic
b) exothermic
c) heterogeneous
d) homogeneous

A substance that consists of atoms of different substances chemically bonded together.
a) compound
b) element
c) mixture
d) atom

A substance that cannot be broken down by ordinary chemical means into a simpler (and more stable) substance.
a) element
b) compound
c) mixture
d) formula

A process that changes the identity of matter.
a) chemical change
b) physical change
c) physical property
d) entropy

A neutral particle with a centrally located nucleus surrounded by electrons; the smallest unit of an element.
a) atom
b) molecule
c) formula
d) compound

A measure of the average kinetic energy of matter (measured in degrees).
a) temperature
b) heat
c) entropy
d) formula

The temperature at which all molecular motion theoretically would stop.
a) absolute zero
b) entropy
c) endothermic
d) exothermic

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