Calculate the numerical Kc value for the following reaction if the equilibrium mixture contains 0.51 M CO2 , 0.30 M H2 , 1.8 M CH4 , and 2.0 M H2O. CO(g) + 3H2 (g) ⇌ CH4 (g) + H2O (g)

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?

Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy

What is the wavelength of a wave with a velocity of 50 m/s and a frequency of 5hz a 250 m b 0.1 m c 10m d 0.01 m