Chemistry Ch. 3
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Matter is made up of _____ and _________. | atoms;molecules
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| Particles do not move fast enough to overcome the attraction between them. | solid
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| Particles move independently of each other. | gas
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| Particles are close together but can slide past one another. | liquid
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| Particles are close together and vibrate in place. | solid
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| Particles move fast enough to overcome nearly all of the attraction between them. | gas
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| What are ice, water, and steam examples of? | states of matter
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| What stays the same in solids? | shape and volume
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| What are two examples of solids? | crystalline and amorphous
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| Which statement is true of liquids? | fixed volume but not shape
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| What force acts on particles at the surface of a liquid? | surface tension
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| The property of liquids that describes their ability to flow is called _________. | viscosity
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| The state of matter that has no fixed shape or volume is ___. | gas
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| What is true of the particles of a gas? | move fast
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| A measure of how fast the particles in an object are moving is ___________. | temperature
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| The amount of space an object takes up is the ______. | volume
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| The volume of a gas depends upon the size of the _________. | container
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| The amount of force exerted on a given area is called ________. | pressure
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| The relationship between the volume and pressure of a gas is called ___________. | Boyle's Law
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| The relationship between the volume and temperature of a gas when pressure remains constant is know as _____________. | Charles's Law
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| Helium is a ___. | gas
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| A measure of the speed of molecules is the ___________. | temperature
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| The amount of space matter takes up is its ______. | volume
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| When the amount of force per unit area increases, the ________ increases. | pressure
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| The pressure in a ball can be increased by adding more _________. | particles
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| The relationships between temperature, pressure, and volume are described by _________________ that involve a fixed amount of gas. | gas behavior laws
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| Volume and pressure of a gas are inversely related. The temperature must stay constant. This is ___________. | Boyle's Law
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| Volume and temperature of a gas are directly related. The pressure must stay constant. This is _____________. | Charles's Law
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| Which has the most energy? | particles in steam
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| When a substance changes from one physical form to another, we say the substance has had a(n) _______________. | change of state
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| The temperature at which a substance changes from solid to liquid is the _____________ of the substance. | melting point
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| Melting is considered a(n) ___________ change because energy is gained by the substance as it changes state. | endothermic
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| A substance's ______________ is the temperature at which it changes from a liquid to a solid. | freezing point
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| What happens if energy is added or removed from a glass of water? | energy added->boils->gas
energy removed->freezes->solid
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| Freezing is considered a(n) __________ change because energy is removed from the substance. | exothermic
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| The change of a substance from a liquid to a gas. | evaporation
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| The change of state from a liquid to a gas when the vapor pressure equals the atmospheric pressure. | boiling
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| The pressure inside the bubbles of a boiling liquid. | vapor pressure
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| The temperature at which a liquid boils. | boiling point
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| As you go higher above sea level, the ___________________ decreases and the _____________ of a substance gets lower. | atmospheric pressure;boiling point
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| The change of state from a gas to a liquid is ____________. | condensation
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| At a given pressure, the condensation point for a substance is the same as its _____________. | boiling point
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| For a substance to change from a gas to a liquid, particles must ______________. | clump together
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| The change of state from a solid to a gas is called ___________. | sublimation
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| The speed of the particles in a substance changes when the ___________ changes. | temperature
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| The temperature of a substance does not change before the _______________ is complete. | change of state
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| When energy is gained by something during a change of state, a(n) ___________ change occurs. | endothermic
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| The melting point of a substance is the same as its ________ point. | freezing
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| When energy is removed from a substance, a(n) _________ change may occur. | exothermic
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| The particles break away from each other during ___________. | evaporation
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| When water boils, a(n) _______________ occurs. | change of state
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| Dry ice changes from a solid to a gas during ___________. | sublimation
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| Sublimation is a(n) ___________ change. | endothermic
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| When the ___________ of a substance changes, the speed of the particles also changes. | temperature
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| List the steps of the water cycle. | freezing->melting->evaporation->condensation
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