Which one of the following is a decomposition reaction?

A. 2H2O (l) → 2H2 (g) + O2 (g)

B. N2 (g) + 3H2 (g) → 2NH3 (g)

C. CH4 (g) + 2O2 (g) → CO2 (g) + 2H2O (g)

D. 2H2 (g) + O2 (g) → 2H2O (g)

A scuba diver sees light reflected from the water's surface. show answer No Attempt If the index of refraction for air is 1.00 and the index of refraction for water is 1.

The volumes of two similar solids are 1,728 m3 and 343 m3. the surface area of the larger solid is 576 m2. what is the surface area of the smaller solid?

A solenoid has 100 turns per cm and a total resistance of 60 Ω center of the solenoid when it is connected to a 12 volt battery Determine the magnetic field in the 21 A flat c

A world-class runner can complete a 100m dash in about 10s. past studies have shown that the runners in such a race accelerate uniformly for a time t (u) and then run at a constant speed for the remainder of the race.

A fan that can provide air speeds up to 55 m/s is to be used in a low-speed wind tunnel with atmospheric air at 23ºc.

Which kind of intermolecular force attracts the stearate ion to the oil drop?

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A person opens a door by applying a 10-N force perpendicular to it at a distance 0.90m from the hinges.

Which car company was the first to offer air conditioning in its cars?

A tennis ball whose initial speed is 2.0 m/s rolls along a floor for 5.0 m before coming to a stop. Find the coefficient of rolling friction.