In a scientific experiment, the one variable that is purposely changed to test a hypothesis is called the manipulated variable.
true or false

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

Substance a is a nonpolar liquid and has only dispersion forces among its constituent particles. substance b is also a nonpolar liquid and has about the same magnitude of dispersion forces among its constituent particles. when substance a and b are combined, they spontaneously mix.

The molecular weight of carbon dioxide, co2, is 44.00 amu, and the molecular weight of nitrous dioxide, no2, is 46.01 amu, so no2 diffuses co2