A control variable is one in which . Group of answer choices

there is a change in the independent variable

there are more than 3 dependent variables

no changes take placeusual or common conditions

Which of the dna typing techniques do you think you would choose if you had to analyze a dna sample? why?

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.

Does the number of ions in solution increase, decrease, or remain constant? it continuously decreases. it continuously increases. it decreases at first, then increases. it increases at first, then decreases.