CHM 151 Exam #1 (NAU)Questions with 100 % correct answers | verified

Law of Conservation of Mass - Matter can't be created or destroyed Physical Change - Change that only alters the state of physical appearance of the substance Chemical Change - Changes that alter the composition or the identity of the atoms of the matter Kinetic Energy - Associated with motion Potential Energy - Associated with position SI units for length - meter (m) SI units for mass - kilogram (kg) SI units for time - second (s) SI units for temperature - kelvin (K) SI Prefix nano (n) - 10^-9 SI Prefix micro (u) - 10^-6 SI Prefix milli (m) - 10^-3 SI Prefix centi (c) - 10^-2SI Prefix deci (d) - 10^-1 SI Prefix kilo (k) - 10^3 SI Prefix mega (M) - 10^6 SI Prefix giga (G) - 10^9 SI Prefix tera (T) - 10^12 Who proposed the atomic theory? - John Dalton