Basic definitions
Is that what that was?
No trick questions
hungry hungry Hippocratics
I have the Power!
100
Temperature is a measurement of
the average speed of moving particles (ie: average KE in the system)
100
The main purpose of carbohydrates for living things is for
fuel (energy)
100
The physical stuff that makes up the universe. Occupies space and a has mass
matter
100
since animals can't make energy, they require what type of energy to be released by eating food
chemical energy
100
list 4 different forms of energy
mechanical, acoustic (sound), light, thermal, chemical, nuclear
200
a covalent compound forms when atoms ____ electrons
share
200
is the following a physical or chemical change?
a carton of cottage cheese going bad and turning sour
chemical
200
the smallest part of a covalent compound; a term not applied to ionic compounds
molecule
200
Carbohydrates, lipids, proteins, and nucleotides are all ________ compounds
organic
200
What is the name for a uniform mixture consisting of a solvent and one or more solutes
a solution
300
a compound held together by opposite electrical charges is a(n) ________ compound
ionic
300
the motion caused by the collisions between particles is called
Brownian motion
300
the tendency of energy to spread out and become unusable when changing form
entropy
300
Because water molecules have regions of asymmetric charge, they are considered _____ molecules
polar
300
what determines whether the substance in a solution is a solute or solvent
a solvent is the more abundant substance.
a solute is dissolved in a solvent
400
Organic compounds contain the element _____
carbon
400
The collected elements or compounds on the left side of a chemical equation are called ____, while the right side are called _____
reactants; products
400
the Brownian motion causes matter to spread out, a process called
diffusion
400
Which type of reaction typically has a higher activation energy, an exothermic reaction or an endothermic reaction
endothermic reaction
400
An inhibitor can decrease the activity of an enzyme by binding to the enzyme's ______
active site
500
When a peptide bond forms between two amino acids, ____ is released
water
500
a substance that produces hydroxide ions in solution (OH-); the opposite of substances that produce hydrogen ions (H+) in solution
base
500
How do enzymes help a chemical reaction? (be specific)
by lowering the activation energy
500
Why do lipids not dissolve in water?
Lipids (fats like oil) are non-polar, so they are not pulled apart by the highly polar water molecules
500
On a whiteboard, draw a general depiction of the energy content in an exothermic reaction vs. an endothermic reaction in graphical form
