1. When you first opened the bottle of coke the pressure of gas in the coke (increased/decreased) and the dissolved gas( stays in/leaves) the coke. 2. When you placed the coke in hot water , the pressure of gas in the coke (increased/decreased) and the dissolved gas( stays in/leaves) the coke 3. Therefore to increase the solubility of a gas in a liquid ( that is to make a gas more soluble in a liquid) you should( increase/ decrease) pressure ( increase/ decrease) temperature 4. Adding salt ( increase/ decrease) the solubility of gas in the liquid. This is due to the nucleation sites on the salt( rough/smooth) surface where the gas forms. (nucleation sites are places where a gas can make bubbles)

The identities of substances are the same before and after which type of change

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

Which change will decrease the number of effective collisions during a chemical reaction? a. adding a catalyst b. increasing the surface area c. decreasing the temperature d. increasing the reactant concentrations e. increasing the volume of the reactants