<span>Passive transport is a movement of biochemicals and other atomic or molecular substances across cell membranes without need of energy input.</span>
Hey there!
<span>Atomic Masses :
</span>
H = <span>1.00794 a.m.u
N = </span><span>14.0067 a.m.u
O = </span><span>15.9994 a.m.u
Therefore:
HNO3 = </span>1.00794 + 14.0067 + ( 15.9994 * 3 ) => <span>63.0128 g/mol</span>
So, first off let’s look at what an independent and dependent variable is.
an independent variable doesn’t change when other variables change, therefore making it alone and independent.
a dependent variable changes based on other variables.
so, i don’t have enough information on your experiment to know the answer but think to yourself, what is changing over time based on something else changing (dependent variable) or think does this thing stay the same no matter what (independent variable).
hope this helps!
the answer to this is chemical change
