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Chapter 1
Vocab and Formulas
83
Chemistry
Undergraduate 1
01/24/2013

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Term
What is matter?
Definition
Anything that takes up space (has volume) and has mass.
Term
What is volume?
Definition
The amount of space taken up by a subtance.
Term
1 liter equals..
Definition
1.057 quarts
Term
Cubic centimeter (cc) is the same volume as ...
Definition
Milliliter (mL).
Term
Milliliter (mL) is the same volume as...
Definition
Cubic centimeter (cc)
Term
What is mass?
Definition
The measured amount of matter in a substance.
Term
Does mass change with location?
Definition
No mass does not change with location.
Term
What is the metric system a part of?
Definition
The International System of Units (SI)
Term
What are the standard units of measure for mass, volume, and length?
Definition
Grams (g), Liters (L), and Meter (m).
Term
Deci?
Definition
0.1 (10 dg = 1 g)
Term
Centi?
Definition
0.01 (100 c = 1 g)
Term
Milli?
Definition
0.001 (1000 mg = 1 g
Term
Micro?
Definition
0.000001 (1,000,000 micrograms = 1 g)
Term
What is the difference between weight and mass?
Definition
Weight is the pull of gravity on an object and forces can change; Mass does not change in locations.
Term
What is a state of matter?
Definition
The physical form in which a substance exists; mainly solid, liquid, or gas.
Term
Explain a solid.
Definition
A state of matter composed of orderly and tightly-packed particles. While the particles do move slightly, this does not cause any significant change in shape. Volume is also definite as well.
Term
Explain a liquid
Definition
A state of matter composed of free-moving and loosely-associated particles. Volume is definite, but shape can change with movement and container.
Term
Explain a gas.
Definition
A state of matter composed of rapid moving particles that collide with one another and the walls of their container. Volume is not definite as well as shape, it expands to fill a container.
Term
What are some factors that affect gases and how do they affect them?
Definition
Temperature and pressure; affect the motion of the gas particles.
Term
What is pressure?
Definition
The amount of force exerted on a given area.
Term
What are the more common units of measure for pressure?
Definition
Pounds per Square Inch (PSI) and Millimeters of Mercury (mmHg).
Term
What is the typical atmospheric pressured exerted at sea level for mmHg?
Definition
760 mmHg.
Term
What is the typical atmospheric pressured exerted at sea level for PSI?
Definition
14.7 PSI.
Term
What is Boyle's Law?
Definition
[Pi x Vi = Pf x Vf]
Term
What happens to a balloon as pressure increases?
Definition
Gas volume decreases.
Term
What happens to a balloon as pressure decreases?
Definition
Gas volume increases.
Term
What happens to a balloon as temperatures rise?
Definition
Gas volume increases.
Term
What happens to a balloon as temperature lowers?
Definition
Gas volume decreases.
Term
Formula for Kelvin conversion.
Definition
Kelvin (K) = Celsius (C) + 273.
Term
Formula for Celsius conversion.
Definition
C = (F - 32) / 1.8
Term
Formula for Farhenheit conversion.
Definition
F = 1.8*C + 32
Term
What is Charles Law?
Definition
Vi / Ti = Vf / Tf (absolute temperature)
Term
What can matter be classified as?
Definition
A mixture or a pure substance.
Term
What can a mixture be classified as?
Definition
Homogeneous or Heterogeneous.
Term
What can pure substances be classified as?
Definition
Elements or compounds.
Term
What is a mixture?
Definition
A combination of two or more substances.
Term
What is one of the defining characteristics of a mixture?
Definition
Is that it can be separated into its different components.
Term
What is a homogeneous mixture?
Definition
A mixture whose composition is the same throughout.
Term
What is a heterogeneous mixture?
Definition
A mixture whose composition varies throughout; no two samples contain the same substances in the same amount.
Term
What is a pure substance?
Definition
Matter that is made up of only one substance.
Term
What is an element?
Definition
The simplest unit of matter that can exist and keep its unique characteristics.
Term
What is a compound?
Definition
A pure substances made up of two or more elements that are chemically joined together.
Term
What does the bold staircase-shaped line on the periodic table represent.
Definition
A line to separate the metals from the nonmetals; elements bordered by the line (except aluminium) are metalloids.
Term
What element is N?
Definition
Nitrogen.
Term
What element is C?
Definition
Carbon.
Term
What element is O?
Definition
Oxygen.
Term
What element is P?
Definition
Phosphorus.
Term
What element is S?
Definition
Sulfur.
Term
What is the letter for Nitrogen?
Definition
N.
Term
What is the letter for Carbon?
Definition
C.
Term
What is the letter for Oxygen?
Definition
O.
Term
What is the letter for Phosphorus?
Definition
P.
Term
What is the letter for Sulfur?
Definition
S.
Term
What is a group?
Definition
One of the vertical columns of elements on the periodic table.
Term
What is a period?
Definition
One of the horizontal rows of elements on a periodic table.
Term
What are the main-group elements?
Definition
Groups 1A through 8A.
Term
What are the transition elements?
Definition
Groups B.
Term
What is a chemical formula?
Definition
A representation showing both the identity and number of elements in a compound.
Term
What are the different changes in matter?
Definition
Physical change or chemical reaction.
Term
What is a physical change?
Definition
A change in the state of matter, but not its identity.
Term
What is a chemical reaction?
Definition
A change involving the reaction of one or more substances to form one or more new substances; identity of substances is changed.
Term
What is a chemical equation?
Definition
A chemist's shorthand for representing a chemical reaction. Shows reactants and products, and often the reaction conditions.
Term
What are the reactants?
Definition
The substances that react to form different substances in a chemical reaction.
Term
What are the products?
Definition
The new substances produced by a chemical reaction.
Term
What is the symbol for heat?
Definition
A triangle.
Term
What does a triangle represent?
Definition
The symbol for heat in a chemical reaction.
Term
What is the symbol for light?
Definition
hv.
Term
What does hv represent?
Definition
The symbol for light in a chemical reaction.
Term
What is an important part of a chemical equation?
Definition
The state labels; (s), (l), (g).
Term
What does aq stand for?
Definition
Aqueous (dissolved in water).
Term
What is an independent variable?
Definition
Deliberatively set by the experimenter, also called the treatment.
Term
Where is an independent variable on a graph?
Definition
X-axis.
Term
What variable is on the x-axis of a graph?
Definition
The independent variable.
Term
What is a dependent variable?
Definition
The factor being measured. Assumed to be affected by the independent variable.
Term
Where is the dependent variable on a graph?
Definition
Y-axis.
Term
What variable is on the y-axis of a graph?
Definition
The dependent variable.
Term
What is the amount of gas measured in?
Definition
Moles.
Term
What is the gas constant?
Definition
R = 0.0831 L atm 1/k 1/mol
Term
What is the combined gas law?
Definition
PiVi/Ti = PfVf/Tf
Term
What is the ideal gas law?
Definition
PV = nRT
Term
What is Dalton's Law of Partial Pressures?
Definition
Each gas has its own pressure and added together gives the total pressure of the gas.
Term
nano
Definition
1,000,000,000 ng = 1g
Term
pico
Definition
1,000,000,000,000 pg = 1g
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