1Note the element hydrogen from The Periodic Table of the Elements. The number 1 represents:
The number of protons.
2Hydrogen-1, deuterium and triterium are all __________________ of the element hydrogen.
isotopes
3Which of the following are true regarding ionic bonds?
formed when electrons are transferred from one atom to another
4Which of the following are true regarding covalent bonds?
formed when electrons are shared between atoms
5Which of the following is a life supporting property of water?
all of the above--high heat capacity, density of ice, and adhesion and cohesion allowing for photosynthesis in leaves.
6Which of the following are true regarding glucose and fructose?
all of the above--they represent isomers, they have identical chemical formulas, they are both monosaccharides.
7The disaccharide sucrose is fromed by a _____________ reaction between glucose and fructose.
dehydration
8A solution with a pH of 5 is ____________.
acidic
9The 20 amino acids vary only in their _________________________.
"R-group"
10Which of the fatty acid chains pictured to the right in unsaturated?
c