Lecture 1

Question 1

Scientific method explain

Answer 1

Ask Question-> Do research -> construct hypothesis -> test with experiment -> analyze results, if true report results, if false revise hypothesis

Question 2

To be alive, something must

Answer 2

Be composed of one or more cells

Question 3

Electron configuration usually determines _______ properties

Answer 3

chemical

Question 4

Covalent bonds

Ionic bonds

Hydrogen bonds

Answer 4

• Covalent bonds – sharing of one or more pairs of electrons by two atoms
• Ionic bonds – involve the transfer of an electron from one interacting atom to the other atom and the subsequent electrical attraction between ions of opposite charge
• Hydrogen bonds – partial charges on adjacent molecules can create a weak attraction

Question 5

Electro-negativity increases as (periodic trend)

Answer 5

you move to the right and up the periodic table

Question 6

low pH means low/high Hydrogen ion concentration

Answer 6

high