One of these substances consists of palladium deposited on CaCO3 reacted with lead acetate and is used to hydrogenate alkynes into alkenes, called the Lindlar variety. Another
One of these substances consists of palladium deposited on CaCO3 reacted with lead acetate and is used to hydrogenate alkynes into alkenes, called the Lindlar variety. Another of these substances is usually titanium and is used in alkene synthesis, called the Ziegler-Natta type. Iron oxide acts as one of these in the Haber process and these substances act by [*] providing an alternate pathway to a reaction, thereby lowering the energy of the transition state. These substances' biological analogs are enzymes and they are used and remade throughout a chemical reaction. For 10 points, name these substances which speed up reactions without being consumed in the process.
One of these substances consists of palladium deposited on CaCO3 reacted with lead acetate and is used to hydrogenate alkynes into alkenes, called the Lindlar variety.
{catalysts}