If log x = -0.761. what does x equal

Nitrogen dioxide decomposes according to the reaction 2 no2(g) ⇌ 2 no(g) + o2(g) where kp = 4.48 × 10−13 at a certain temperature. if 0.70 atm of no2 is added to a container and allowed to come to equilibrium, what are the equilibrium partial pressures of no(g) and o2(g)

What is the chemical name of the compound ti2o3? use the list of polyatomic ions and the periodic table to you answer.

Which fossil fuel is mainly used for heating and cooking? a. electricity b. coal c. petroleum d. natural gas