Chemistry, 03.09.2019 22:30, xxgissellexx

Which of the following is an example of observational scientific investigation?
a. mixing two reactants together in a small beaker
b. noting the color of a solution when heated.
c. placing test tubes in an ice bath for 15 minutes
d. drying solid produced by placing it in an oven.

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Which of the following is an example of observational scientific investigation?
a. mixing two...