The chemical equation below shows the combustion of propane (C3H8). C3H3 + 502-3CO2 + 4H2O
The molar mass of oxygen gas (O2) is 32.00 g/mol. The molar mass of CzHe is 44.1 g/mol. What mass of O2, in grams, is required to completely react with
0.025 g C3H8?
A. 0.018
B. 0.034
C. 0.045
D. 0.091

Why is the bond angle in a water molecule less than the bond angle of methane? a. the central oxygen atom in water has two lone pairs of electrons, whereas the central carbon atom in methane has no lone pairs. b. the central hydrogen atom in water has one lone pair of electrons, whereas the central carbon atom in methane has two lone pairs. c. the central oxygen atom in water has four lone pairs of electrons, whereas the central carbon atom in methane has only one lone pair. d. the central oxygen atom exerts more repulsive force on surrounding atoms than the central carbon atom in methane does. reset next

In which block of the periodic table is uranium (u) found? s blockd blockp blockf block

Anitrogen atom and an oxygen atom combine chemically to form nitric oxide. what is nitric oxide?