Answer:
They would react the same as with the vinegar and hydrogen peroxide at room temperature.
Explanation:
In this experiment catalase acts as the catalyzing enzyme which decomposes hydrogen peroxide. All living things (be it frozen liver or a potato) consists of catalase. Such enzymes decompose one substance into another. Catalase enzyme helps in breaking down hydrogen peroxide into water and oxygen and also speed up the process of decomposition by providing and maintaining favorable situation. Therefore, irrespective of whether this catalase is found in the frozen liver or potato, they would react in the similar manner.
Hence, option A is correct
Answer:Methanol is a poisonous chemical derived through synthetic processes, while commercial ethanol is produced by factory fermentation of food crops.
Explanation:
For a chemical reaction to occur, activation energy is required. Using the activation energy, reactants form products by breaking bonds which require energy. This type of reaction is an endothermic reaction. When products are formed, bonds are formed back by releasing energy. This type of reaction is an exothermic reaction. When activation energy is used for a reaction, a catalyst is not required. Adding a catalyst to the reaction causes the rate of reaction to increase.
Two species have homologous structures. What do these homologous structures show about the evolutionary relationship between the two species? (3 points) The homologous structures show that the two species followed up the evolutionarypath up to the structure. They may have branched off right after that trait.
Answer:
The correct answer is option a. "lower melting temperature".
Explanation:
Food makers add hydrogen to vegetable oil in order to make them more solid. The melting point of vegetable oils that go trough a partial hydrogenation process do not lower, actually, the melting point increases. Vegetable oils that are partially hydrogenated are partially saturated, which in consequence increases its melting point to the point that they could be solid at room temperature.