1. which variable is the independent variable and which is the dependent variable? density vs. ethylene glycol

a. a 25-ml volumetric flask with its stopper has a mass of 32.6341 g. the same flask filled to the line with ethylene glycol (c2h6o2, automotive antifreeze) solution has a mass of 58.0091 g. what is the density of the ethylene glycol solution?

b. what is the molarity of the ethylene glycol solution, if the mass of ethylene glycol in the solution is 12.0439 g?

Plz me ! 1 which of earths spheres contains most of its mass? a atmosphere b hydrosphere c geosphere* d biosphere 2 erosion and weathering are examples of which types of forces? a constructive forces b destructive forces* c gravitational forces d inertia-related forces 3 which of the following statements about earths atmosphere is true? a earths atmosphere contains 78% water vapor which is essentail to life b earths atmosphere contains 21% oxygen c earths atmosphere contains carbon dioxide which all life forms require d earths atmosphere allows radiation from the sun to pass through it and warm earths surface* 4 the strenght of the force of gravity between two objects is determined by which of the following factors? select all that apply a the messes of the objects* b the distance between the objects* c the volumes of the objects d the surface area of the objects 5 earth and moon are kept in there respective orbits due to the influence of a inertia b gravity c gravity and inertia* d neither gravity or inertia if you answer all questions right i will give