No, catalysts are not always nonmetals. They can be metals, metal oxides, or nonmetals, depending on the specific chemical reaction they facilitate. For example, transition metals like platinum and palladium are commonly used as catalysts in various industrial processes. The effectiveness of a catalyst is determined by its ability to lower the activation energy of a reaction, rather than its elemental classification as a metal or nonmetal.
True. At room temperature, four nonmetals—nitrogen, oxygen, fluorine, and neon—exist as gases.
that is true
Yes. it is true.
Yes, it's true.
In any reaction, a catalyst is never used up or changed. This means that at the end of every reaction you should always get your catalyst back. sometimes in the course of the reaction, the catalyst is used up, but by the end of the reaction it will always be reformed completely.
catalyst
True. At room temperature, oxygen, nitrogen, fluorine, and chlorine are nonmetals that exist as gases.
True. At room temperature, four nonmetals—nitrogen, oxygen, fluorine, and neon—exist as gases.
that is true
Yes, it's true.
Yes. it is true.
In any reaction, a catalyst is never used up or changed. This means that at the end of every reaction you should always get your catalyst back. sometimes in the course of the reaction, the catalyst is used up, but by the end of the reaction it will always be reformed completely.
False. Nonmetals are poor conductors of heat and electricity compared to metals. This is because nonmetals have fewer free electrons available to carry an electric current or transfer thermal energy.
No, a catalyst will not change reaction enthalpy. If it does so, then it is NOT a catalyst but a reactant in stead!
It is true that a catalyst is used in chemical reactions to help speed up the reaction by reducing activation energy.
It is not true; many metals are very reactive and several nonmetals are nonreactive.
false