Chem 1010 midterm 1 Questions and
Answers.
periodic table of the elements - Answer
conversion factors - Answer 2.54 cm = 1 in
1 ml = 1cm(cubed)
1 cal = 4.184 J/g (degree) C
Fahrenheit and K conversion - Answer 9/5 = 1.8
some metals that form more than one positive ion - Answer look at phone
one of the most important parts of the scientific method is to identify "holes" in current
models, and then working to improve the model. - Answer TRUE
Some scientific models are the same as reality - Answer false
in the conversion 1km/1000 m, there is only 1 sig fig. - Answer it is exact (no sig figs)
heat and temperature are the same thing - Answer false
if a measurement is PRECISE, then it is close to the actual value - Answer FALSE bc ACCURATE
is close to actual value
pure substances are composed of only one kind of element - Answer False, natural made
ones are pure but may have more than one kind of element, for example wateerrrr
chemistry is the study of matter and its change - Answer true
in the scientific method, a hypothesis is tentative while a theory is a robust, well-tested set of
hypothesis - Answer true
a model can be a hypothesis or theory - Answer true
a model is the same as reality - Answer false
Answers.
periodic table of the elements - Answer
conversion factors - Answer 2.54 cm = 1 in
1 ml = 1cm(cubed)
1 cal = 4.184 J/g (degree) C
Fahrenheit and K conversion - Answer 9/5 = 1.8
some metals that form more than one positive ion - Answer look at phone
one of the most important parts of the scientific method is to identify "holes" in current
models, and then working to improve the model. - Answer TRUE
Some scientific models are the same as reality - Answer false
in the conversion 1km/1000 m, there is only 1 sig fig. - Answer it is exact (no sig figs)
heat and temperature are the same thing - Answer false
if a measurement is PRECISE, then it is close to the actual value - Answer FALSE bc ACCURATE
is close to actual value
pure substances are composed of only one kind of element - Answer False, natural made
ones are pure but may have more than one kind of element, for example wateerrrr
chemistry is the study of matter and its change - Answer true
in the scientific method, a hypothesis is tentative while a theory is a robust, well-tested set of
hypothesis - Answer true
a model can be a hypothesis or theory - Answer true
a model is the same as reality - Answer false
