Answer:
2.5 g of platinum
Explanation:
A catalyst is a substance added to a reaction to enhance the reaction speed. It does not undergo any change during the reaction, meaning it remains unchanged after the reaction concludes. The role of a catalyst is to provide an alternative pathway for the reaction by reducing the activation energy required. Therefore, a catalyzed reaction occurs more rapidly and requires less energy compared to an uncatalyzed one.
Since catalysts do not get involved in reactions and retain their mass post-reaction, the amount of platinum will stay the same (2.5g). The mass can only alter if a substance participates in the chemical process. Thus, this is the response.
Respuesta:
El oxígeno en H2O2 es la especie que se reduce a H2O y se oxida a O2.
Explicación:
5 H2O2(aq) + 2 MnO4-(aq) + 6 H+(aq) → 2 Mn2+(aq) + 8 H2O(l) + 5 O2(g)
La oxidación se define como la pérdida de electrones. La oxidación provoca un aumento en el número de oxidación de un elemento.
Si se descompone esta reacción en sus mitades de reducción y oxidación
Se observa que, de los reactivos mencionados anteriormente,
H202 se convierte en H2O y O2
MnO4- + H+ se convierte en Mn2+ y H2O
El número de oxidación de Mn cambia de +7 en MnO4- a +2 en Mn2+ (lo que indica evidentemente una reducción)
El oxígeno en MnO4- no cambia su número de oxidación, ya que se mantiene en -2
El número de oxidación del oxígeno cambia de -1 en H2O2 a -2 en H2O y 0 en O2
El hidrógeno en H2O2 no cambia su número de oxidación, y su número de oxidación se mantiene en +1 tanto en H2O2 como en H2O.
Esto indica que H2O2 sufre tanto oxidación como reducción; más específicamente, el oxígeno en H2O2 es la especie que se reduce a H2O y se oxida a O2.
Espero que esto ayude
True; True; False; True; True. Explanation: Organic compounds can exist in pure form, but they are typically found in mixtures, such as in petroleum, which implies that the compound one obtains could be impure. Organic compounds can exist in three states: solid, liquid, or gas. The state depends on the molecular forces and the molar mass involved. For instance, at room temperature, gasoline is a liquid, natural gas is a gas, and glucose is a solid. The fundamental characteristic of organic compounds is that they contain carbon (C) and hydrogen (H), while other elements like oxygen (O), nitrogen (N), halogens, and sulfur (S) may or may not be part of their structure. Because carbon can form chains, millions of organic compounds are known. Spectroscopic methods can provide information such as composition, molar mass, and diffraction patterns, which can assist in identifying certain chemical properties and may require additional identification tests.
You can find further information regarding each unit of measurement: the molecular weight of Copper(I) Oxide or grams. The molecular formula for Copper(I) Oxide is Cu2O. The SI base unit for the amount of substance is the mole. One mole translates to 1 mole of Copper(I) Oxide, equating to 143.0914 grams.
-470,809 m is expressed in whole numbers
