Which reaction is balanced correctly? C 6H 12O6 + 3O 2 → 6CO 2 + 6H 2O
CH 4 + 4O 2 → CO 2 + 2H 2O C
3H 8 + 5O 2 → 3CO 2 + 4H 2O
C + O 2 → 2CO 2

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

When a septic tank backs up a goes in to clean it out

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