Please help How many liters of CO2 are produced when 32.6 liters of propane gas, C3H8 reacts with excess oxygen at STP?

C3H8+5O2——4H2O+3CO2

When determining the shape of a molecule, it is important to draw a lewis dot structure first in order to see the total number a. electrons within the moleculeb. bonding and unshared pairs around central atomc. unshared pair within the molecule( i really need it )

Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.

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