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Integrated Physics and Chemistry

Terms in this set (50)

A(n) ________________________ is a substance that is made from atoms of different elements.
compound
A(n) ________________________ is a special mixture that contains large particles, but not large enough to settle to the bottom.
colloid
________________________ is a measurable value that is determined from the amount
of gravitational force exerted on a given object.
Weight
A physical property that does not depend upon the amount of the matter that is present in the sample is a(n) ________________________ property.
intensive
A(n) ________________________ is a heterogeneous mixture in which visible particles settle.
suspension
A(n) ________________________ mixture is nonuniform in composition.
heterogeneous
What physical property of this metal allows it to be shaped into a wire?
ductility
What physical property of aluminum allows it to be pounded into a sheet?
malleability
A(n) ________________________ is two or more atoms that chemically join together.
molecule
A(n) ________________________ is the smallest unit of an element that retains the properties of that element.
atom
A(n) ________________________ mixture is uniform in composition.
homogeneous
A(n) ________________________ is the combination of two or more substances that are not chemically bound to one another.
mixture
Gasoline is separated from crude oil by heating it until it reaches its boiling point. Which separation method is used?
distillation
A physical property that depends on the amount of matter that is measured is a(n) ________________________ property.
extensive
A(n) ________________________ is a substance that is unable to break down or separate into simpler substances by chemical methods.
element
Sugar dissolves in water, making a solution. Is sugar's solubility a chemical or physical property?
physical
________________________ is the amount of matter that an object is made of.
Mass
A process in which a solid changes into a liquid is ________________________.
melting
If the pressure of a gas is decreased by 8×, what will happen to the volume?
It will increase by 8x
If the temperature of a gas is increased by 8×, what will happen to the volume?
It will increase by 8×.
Which phase changes are endothermic?
sublimation, melting, vaporization
"Matter is made of particles in motion" is a statement of ___.
The kinetic theory of matter
A process in which a gas changes directly into a solid is ________________________.
deposition
A process in which a solid changes directly into a gas is ________________________.
sublimation
A process in which a gas changes into a liquid is ________________________.
condensation
A process in which a liquid changes into a gas is ________________________.
vaporization
Which phase changes are exothermic?
freezing, condensation, deposition
A process in which a liquid changes into a solid is ________________________.
freezing
Which statement is true?
Particles in matter move faster when energy is added.
Make sure to review the lessons before you move on to next one.
"At a constant pressure, volume of a gas increases as temperature increases" is a statement of ___.
Charles's law
"At a constant temperature, volume of a gas decreases as pressure increases" is a statement of ___.
Boyle's law
A(n) ________________________ phase change occurs when energy is released as a substance undergoes a phase change.
exothermic
A(n) ________________________ phase change occurs when a substance absorbs energy as it changes phases.
endothermic
Which statement is true?
Fluids with higher viscosity flow slower than fluids with lower viscosity.
Brenda wants to measure 9 grams of sodium chloride on an electric mass balance. She puts a plastic container on the scale and then sets the scale to zero. Then she measures 9 grams of sodium chloride into the plastic container.
What was Brenda doing when she set the scale to zero after putting the plastic container on it?
She was taring it.
________________________ is the ability for a fluid to exert an upward force on an object submerged in that fluid.
Buoyancy
The density of a toy is less than the density of saltwater. The toy will _____.
float
________________________ principle states that the force on an object is equal to the weight of the fluid that is displaced by the fluid.
Archimedes'
The density of saltwater is greater than the density of freshwater. The freshwater will _____.
float
A property that refers to the resistance to flow by a fluid is called __________________.
viscosity
A(n) ________________________ change occurs when a substance changes into a new substance that has different properties.
chemical
________________________ is the force that is exerted per unit area.
Pressure
A(n) ________________________ change occurs when a substance changes its physical appearance but not its composition.
physical
Which tool would you use to determine the amount of heat generated transformed, or absorbed in a chemical reaction?
calorimeter
Which tool would you use to find the mass of a small amount of substance?
electric mass balance
The buoyant force of the water is greater than the weight of a chair. The chair will ______.
float
What is an example of a chemical change?
a rotting apple, rust on a bike
What are examples of a physical change?
water evaporating into steam, a sliced apple
Which tool would you use to accurately measure the volume of a liquid?
graduated cylinder
A(n) ________________________ is a substance that can be classified as either a liquid or gas.
fluid
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