Classify each statement about catalysts as true or false. catalyst lower activation energy catalyst are consumed by the overall reaction catalyst speed up chemical reaction

Catalyst lower activation energy: TRUECatalyst are consumed by the overall reaction: FALSECatalyst speed up chemical reaction: TRUE

Explanation:

Chemical reactions follow a path: reactants increase their chemical energies, form activated complexes (transition compounds) until reaching the activation energy, from which the final products are formed.

Catalysts are substances that can change the path of the reactions by lowering the activation energy (first statement is true) and, consequently, speeding up the reaction (third statement is true).

The activation energy is the minimum amount of energy required for the reactants to form the activated complex. So, catalysts, by providing a new path, where the activation energy is lower, manage to incrase the rate of the reaction.

But catalysts, although intervene in the reaction by modifying the way the reactants will react, do not form part of the reactants nor products, so they are not consumed by the overall reaction (second statement is false).

For cyclohexane compounds drawn in a chair conformation:   -axial bonds are vertical  -equatorial bonds are parallel to two bonds within the ring.  thus, as i assume the chair conformation is drawn:   -the x group is in an axial position, as are the five other vertical bonds.  -three axial bonds are on the top face of the ring  -the other three axial bonds are on the bottom face  the position of the second substituent on each ring carbon is equatorial.  gauche groups must be on an adjacent carbon such as carbon 6 and carbon 2, and also gauche groups are rotated by 60 degrees relative to each other.  drawing the newman projections for c1–c2 and c1–c6 aids in visualizing the groups that are gauche to the y group on c1.  click this link and watch some academic videos that may you more understand the topic 

It is 4.92 e-4 sorry if i am wrong