Chemistry Midterm Exam Questions With
Correct Answers
t/f The steps of the scientific method must be followed in order every time an experiment is
carried out - answerFalse
t/f An object has the same weight regardless of its location on Earth - answerFalse
t/f Chemistry is the study of matter ...
Chemistry Midterm Exam Questions With
Correct Answers
t/f The steps of the scientific method must be followed in order every time an experiment is
carried out - answer✔False
t/f An object has the same weight regardless of its location on Earth - answer✔False
t/f Chemistry is the study of matter and the changes it goes through - answer✔True
t/f If an accidental discovery is made, it means something went wrong with the experiment and
the results should be discarded - answer✔False
t/f While preparing an acid solution, always add water to the acid - answer✔False
t/f In determining the percent error, only the size of the difference matters, not whether the
measured value is above or below the accepted value - answer✔True
t/f The SI unit for volume, liter, is equivalent to a meter cubed - answer✔False
Which is the part of an experiment that serves as the point of comparison for the results -
answer✔control
which precaution should you take when you see this symbol (it's a picture of goggles) -
answer✔wear goggles if you are performing or observing the experiment
Which precaution should you take when you see this safety symbol? (hands) - answer✔Wash
your hands after the lab
These three solid blocks are made of the same material and have the exact same dimensions.
Which block has the greatest mass? - answer✔They all have the same mass.
Which describes what happens when you fly 10km above Earth's surface - answer✔mass
remains constant, weight decreases
A student conducts an experiment to determine the effect of adding salt on the boiling
temperature of water.
Which is the dependent variable in this experiment? - answer✔Boiling temperature
A student conducts an experiment to determine the effect of adding salt on the boiling
temperature of water.
What is a value that should remain constant for all samples in this experiment? -
answer✔Volume of water
A student conducts an experiment to determine the effect of adding salt on the boiling
temperature of water.
What is the control of this experiment? - answer✔Sample One
A student conducts an experiment to determine the effect of adding salt on the boiling
temperature of water.
What is a reasonable hypothesis for this experiment? - answer✔If salt is added to water, then
the water will boil at a higher temperature
A student conducts an experiment to determine the effect of adding salt on the boiling
temperature of water.
Which kind of graph would be best to use with this data? - answer✔Line graph
Which is NOT an appropriate unit for density? - answer✔g/cm
Which term describes the amount of mass contained per unit volume? - answer✔density
Which value only has four significant digits? - answer✔6.390
Which is the correct conversion for a temperature of 67.3 degrees celsius? - answer✔153.1
degrees fahrenheit
Which is the sum of these values, to the appropriate number of significant digits?
17.358+3.502+20.14 - answer✔41.00
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