Introduction To Chemistry 2016 Question Preview (ID: 32973)


States Of Matter, Physical And Chemical Properties, Physical And Chemical Changes, Atomic Composition. TEACHERS: click here for quick copy question ID numbers.

This is a characteristic property, and is the temperature at which a solid changes state and becomes a liquid.
a) freezing point
b) melting point
c) boiling point
d)

characteristics of substances that are used to describe and identify matter, such as size, shape, color, and ability to react to other chemicals
a) properties
b) reactions
c) state of matter
d)

the energy of a substance heat, this increases as the temperature increases, causing the molecules to move faster
a) kinetic energy
b) chemical energy
c) thermal energy
d)

the change in state from a solid directly to a gas, and never passes through the liquid state (like dry ice)
a) deposition
b) sublimation
c) vaporization
d)

a solid that forms during a chemical reaction when two or more liquids are mixed
a) fizz
b) aroma
c) precipitate
d)

when reading and writing chemical formulas, this is the small number after a chemical symbol that tells how many atoms of the element there are
a) molecule
b) subscript
c) exponent
d)

this forms when two or more ELEMENTS chemically combine
a) compound
b) molecule
c) atom
d)

this is created when two or more atoms chemically combine (the atoms can be of the same element, or they can be different
a) compound
b) molecule
c) mixture
d)

the smallest particle of an element that cannot be chemically broken down further
a) atom
b) cell
c) molecule
d)

Occurs without altering the chemical makeup of a substance, such as dissolving sugar in water
a) chemical property
b) physical change
c) chemical change
d)

when two or more substances chemically combine and form new substances (such as a gas); occurs when the bonds between atoms break or new ones form
a) chemical reaction
b) compound
c) physical change
d)

the amount of matter an object contains
a) volume
b) mass
c) weight
d)

this state of matter has a definite shape and a definite volume; the particles are tightly packed in a fixed position
a) solid
b) liquid
c) gas
d)

this state of matter is made of particles that are free to move around but stay close to one another
a) solid
b) liquid
c) gas
d)

this state of matter has particles that move quickly and spread out to fill the container
a) solid
b) liquid
c) gas
d)

Evidence of this is the formation of a gas
a) chemical change
b) physical change
c) precipitate
d)

occurs when a liquid changes state to a gas, such as when water boils
a) vaporization
b) condensation
c) deposition
d)

occurs when a liquid changes state to a gas, such as when a water puddle slowly disappears throughout the day
a) condensation
b) sublimation
c) evaporation
d)

the change in state when a gas cools and the molecules slow down to become a liquid
a) melting
b) evaporation
c) condenation
d)

the amount of space that an object takes up
a) mass
b) volume
c) density
d)

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