Abeka Chemistry Test 3 EXAM p1

How many significant digits are in 0.0450?

• 1

• 2

• 3

• 4

Which type of reaction has the form A+BC -> AB+C?

• decomposition

• combination

• single displacement

• double displacement

Which experiment led to the development of the planetary model?

• oil-drop experiement

• canal-ray experiment

• Crookes's-tube experiment

• gold-foil experiment

If the percent composition of a compound is known, what one additional piece of information is needed to determine the compound's molecular formula?

• average atomic weight

• molar mass

• empirical formula

• isotopic abundance

What is the value of R?

• 22.7 L/mol

• 273.15K

• Charles's law

• Avogadro's law

• Dalton's law of partial pressure

• Boyle's law

Match this formula to the correct law:

P₁V₁ = P₂V₂

• Charles's law

• Boyle's law

• Graham's law of diffusion

• Dalton's law of partial pressure

• Dalton's law of partial pressure

• Graham's law of diffusion

• Avogadro's law

• Murphy's law

• Dalton's law of partial pressure

• Boyle's law

• Murphy's law

• Charles's law

• Dalton's law of partial pressure

• Chelsea's law

• Graham's law of diffusion

• Pascal's law