4Fe + 3O2 + xH2O → 2Fe2O3 • xH2O

The formation of rust (equation above) is an example of both combustion and

a] Synthesis

b] decomposition

c] single replacement

d] double relacement

If an object on Pluto has a mass of 10 kg and a weight of 6.6 N, what is the acceleration due to gravity at its location?

The minute hand of the clock shown below moves along the dashed, circular path. Each complete circle takes 1 hour. When the minute hand is on the 3, which direction is its acceleration in?

Juan measured the temperature of salt water. He then added 273 to the measured value. Which conversion is Juan m likely doing?

How many electrons can the first shell hold

When performing Tai Chi, The breathing technique utilized is called "Belly Breathing" True or False

Ganymede is one of the many moons of jupiter. it is nearly a sperical in shape. it is larger than the planet mercury and slightly smaller than the planet mars.

Which of the following statements about two carts rolling on a track and experiencing a completely inelastic collision is TRUE? a. The kinetic energy of the system is conserved to good approximation. b.

If element X has 17 protons, how many electrons does it have?

A 2.0-kilogram laboratory cart is sliding across a horizontal frictionless surface at a constant velocity of 4.0 meters per second east. What will be the cart's velocity after a 6.0-newton westward force acts on it for 2.

A boat floats with 25% of its volume under water. a. What is the boatâs density? b. If the boat was made from 500 kg of metal, what is the volume of the boat? (Assume the air in the boat has negligible mass and density) c.