What statement explains the changes from wave a to wave b?

Answer asap need it by wednesday morning calculate the ph of 0.02m hcl best answer will be brainliest

Exit what is the density of an object having a mass of 5.0 g and a volume of 45.0 cm3?

What two factors can affect the properties of a hydrocarbon? a. the number of its carbon atoms and the number of single bonds b. the number of its carbon atoms and the arrangement of its atoms c. the arrangement of its atoms and the number of its double bonds