How do catalysts increase the rate of a chemical reaction? a] they lower the activation energy. b] they lower the collision energy. c] they increase the collision energy. d] they increase the temperature. e] they increase the concentration of reactants.

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 

Matter- occupies space and possesses rest massno matter is the opposite

A. burning woodcombustion is the process of burning something. make brainliest if correct

In any atom of any element, you will find protons and neutrons in the nucleus of any atom