Sally wants to see which fertilizer makes tomato plants grow the tallest. she use 3 types (a, b, c) and leaves one group in soil without any fertilizer. identify the independent variable, dependent variable, and the control group in this experiment.

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.

Consider this initial-rate data at a certain temperature for the reaction described by

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.