Mod 5 Study Guide Flashcards
Saturated Fat
A lipid made from fatty acids that have not double bonds between carbon atoms
Physical Change
A change that affects the apperance but not the chemical makeup of a substance
Model
An explanation or representation of something that cannot be seen.
Isomers
Two different molecules that have the same chemical formula
What determines the properties of a protien?
The sequence of the amino acids
What holds the two helixes in DNA together
Hydrogen Bonding
Two atoms have the same number of neutrons but different numbers of protons. Do they belong to the same element?
No
The element sulfur is comprised of all atoms that have 16 protons. How many neutrons are in sulfur-34?
18
How many total atoms are in one molecule of C22H44O?
66 atoms
Identify the following as an atom, element, or molecule:
P
element
When you boil water, are you causing a chemical change or physical change?
Physical Change
Two solutions of diferent solute concentration are seperated by a membrane. After 1 hour, the solutions are equeal concentrations and the water levels are the same as when the experiment started. Is this an example of diffusion or osmosis?
diffusion
In the following equation:
C3H8 + 5O2 —-> 3CO2 + 4H2O
Is CO2 a product or a reactant?
How many molecules of it are involved in the reaction?
CO2 is a product
3 molecules are involved.
What four things are necessary for photosynthesis?
energy, catalyst, carbon dioxide and water
If the following molecule is a carbohydrate, what is the value of x? C4HxO6
x = 12
