UMICH CHEM 130 Exam #1
QUESTIONS WITH ACTUAL
COMPLETE ANSWERS 2025/2026 SET.
Addition/Subtraction Propagation of Error - Answer √a²+b²
Multiplication/Division Propagation of Error - Answer 2.0*√(a/3.0)²+(b/1.5)²
Kevlin - Answer Celsius + 273.15
F to C - Answer (F-32)/1.8
C to F - Answer (C x 1.8) + 32
diatomic molecule - Answer H2, N2, O2, F2, Cl2, Br2, I2
Law of Multiple Proportions - Answer if two or more different compounds are composed of
the same two elements, then the ratio of the masses of the second element combined with a
certain mass of the first element is always a ratio of small whole numbers
Dalton's Atomic Theory - Answer 1) elements are composed of atoms. 2) atoms of same
element are identical, but differ from other elements. 3) elements can mix together, with always
same # and types of atoms 4) chemical reaction is a reorganization of atoms
Avagadro's Hypothesis - Answer equal volumes of gases at the same temperature and
pressure contain equal numbers of particles
Thomson - Answer cathode ray tube experiment-mass to charge ratio-plum pudding model
Millikan - Answer Oil Drop Experiment, determined mass and magnitude of the electron
Rutherford - Answer Gold foil experiment, discovered nucleus
QUESTIONS WITH ACTUAL
COMPLETE ANSWERS 2025/2026 SET.
Addition/Subtraction Propagation of Error - Answer √a²+b²
Multiplication/Division Propagation of Error - Answer 2.0*√(a/3.0)²+(b/1.5)²
Kevlin - Answer Celsius + 273.15
F to C - Answer (F-32)/1.8
C to F - Answer (C x 1.8) + 32
diatomic molecule - Answer H2, N2, O2, F2, Cl2, Br2, I2
Law of Multiple Proportions - Answer if two or more different compounds are composed of
the same two elements, then the ratio of the masses of the second element combined with a
certain mass of the first element is always a ratio of small whole numbers
Dalton's Atomic Theory - Answer 1) elements are composed of atoms. 2) atoms of same
element are identical, but differ from other elements. 3) elements can mix together, with always
same # and types of atoms 4) chemical reaction is a reorganization of atoms
Avagadro's Hypothesis - Answer equal volumes of gases at the same temperature and
pressure contain equal numbers of particles
Thomson - Answer cathode ray tube experiment-mass to charge ratio-plum pudding model
Millikan - Answer Oil Drop Experiment, determined mass and magnitude of the electron
Rutherford - Answer Gold foil experiment, discovered nucleus
