Chem 111 final exam UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS
Density is an example of physical property
Experiment something done to test a hypothesis that produces new observations
, Which of the following elements is most similar to Se (in the same column)
oxygen?
Example of a mixture- Air
Air
Pure water
Hydrogen Fluoride
If iodine melts at 114C and boils at 184C, what is its gas
physical state at 199C?
The state of matter for an object that has both definite solid
volume and definite shape is
A chemist needs 27.3 g of bromine for an experiment. 8.75 mL
What volume of bromine should the chemist use?
(Density of bromine = 3.12 g/cm3)
The gold foil experiment performed in Rutherford's lab led to the discovery of the atomic nucleus
A student finds that the weight of an empty beaker is 2
19.799 g. She places a solid in the beaker to give a
combined mass of 19.862 g. To how many significant
figures is the mass of the solid known?
The symbol for titanium is Ti
The number 243.3450 rounded off to five significant 243.34
figures is
Which of the following is a homogeneous mixture? maple syrup
pepperoni pizza
soil
maple syrup
pure water
How many protons, electrons, and neutrons, respectively, 38, 36, 51
does 89Sr2+ have?
Which of these is a chemical property? Helium is very nonreactive
Convert 931.6 qt to milliliters 8.816 x 10^5 mL
Perform the following conversion: 5.33 m/s = __________ mi/h 11.9 mi/h
Convert 7.09 ng to ounces 2.50 x 10^10 oz
The symbol Sn stands for the element stannum
Density is an example of physical property
Experiment something done to test a hypothesis that produces new observations
, Which of the following elements is most similar to Se (in the same column)
oxygen?
Example of a mixture- Air
Air
Pure water
Hydrogen Fluoride
If iodine melts at 114C and boils at 184C, what is its gas
physical state at 199C?
The state of matter for an object that has both definite solid
volume and definite shape is
A chemist needs 27.3 g of bromine for an experiment. 8.75 mL
What volume of bromine should the chemist use?
(Density of bromine = 3.12 g/cm3)
The gold foil experiment performed in Rutherford's lab led to the discovery of the atomic nucleus
A student finds that the weight of an empty beaker is 2
19.799 g. She places a solid in the beaker to give a
combined mass of 19.862 g. To how many significant
figures is the mass of the solid known?
The symbol for titanium is Ti
The number 243.3450 rounded off to five significant 243.34
figures is
Which of the following is a homogeneous mixture? maple syrup
pepperoni pizza
soil
maple syrup
pure water
How many protons, electrons, and neutrons, respectively, 38, 36, 51
does 89Sr2+ have?
Which of these is a chemical property? Helium is very nonreactive
Convert 931.6 qt to milliliters 8.816 x 10^5 mL
Perform the following conversion: 5.33 m/s = __________ mi/h 11.9 mi/h
Convert 7.09 ng to ounces 2.50 x 10^10 oz
The symbol Sn stands for the element stannum
