What must occur in order for a chemical reaction to be specifically classified as endothermic?
What must occur in order for a chemical reaction to be specifically classified as endothermic instead of exothermic? Energy is absorbed in the form of heat.
Which statements best describes how a catalyst can speed up a chemical reaction?
Explanation: The catalyst speeds up chemical reactions by decreasing the amount of activation energy/reaction energy needed in the reaction.
Which statement best describes the amount of catalyst?
Answer: The amount of catalyst is the same at the end as at the beginning of the reaction. Explanation: “A catalyst is a substance that helps to speeds up the rate of a chemical reaction but it is not consumed during the course of the reaction.”
Which statement best describes how a catalyst?
Answer Expert Verified A catalyst “provides an alternate reaction pathway with a lower activation energy”. (2) is the correct answer.
Which statement best describes the way a catalyst works quizlet?
Which statement best describes the way a catalyst works? It increases the value of ΔH.
How does a catalyst speed up a chemical reaction quizlet?
Catalyst speed up the reaction by lowering the activation energy or providing an alternative pathway for the reacting particles.
When methane is burned with oxygen the products are carbon dioxide and water quizlet?
When methane is burned with oxygen the products are carbon dioxide and water. If you produce 36 grams of water and 44 grams of carbon dioxide from 16 grams of methane, how many grams of oxygen were needed for the reaction? When methane is burned with oxygen, the products are carbon dioxide and water.
Which statement correctly describes a chemical reaction?
The correct statement is: Bonds between atoms break and new bonds form. Chemical reaction is the rearrangement of atoms to form new substances. The bonds in the reactants first break so that atoms may be free to rearrange and form new bonds resulting in the products.
What is the best description of activation energy?
The best definition of activation energy is that activation energy is the energy required to bind a substrate to an active site (option C).
Which statement is the best description of a chemical bond?
The answer Is B;A chemical bond holds atoms together.
Which statement best describes what happens to atoms during a chemical reaction?
In a chemical reaction, the atoms and molecules that interact with each other are called reactants. No new atoms are created, and no atoms are destroyed. reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.