A catalyst is something that is used to lower the activation energy of a reaction, that is later regenerated by the reaction (but the equilibrium isn't altered). In this case, an enzyme is an organic (protein) catalyst, so that's your answer.
Answer:
- The <em>kinetic molecular theory explains the pressure exerted by gases </em>as the result of many collissions of the gas particles (atoms or molecules) with the walls of the vessel where they are contained.
- The pressure is the perpendicular force per unit area exerted by the gas particles when they hit the walls of the container.
Explanation:
As per the kinetic molecular theory, gases consist on a large number of tiny particles (atoms or molecules) in continuous rapid random motion.
The particles are so small that they are considered to have a negligible volume compared with the volume of the vessel where they are confined.
Since the number of molecules is so large, statistical approach can be applied.
The rapidly moving particles constantly collide among them and with the walls of the container. The collisions are considered elastic, which means that there is no loss of energy after the coliisions.
Applying classical (Newtonian) mechanic and the statistical approach, the kinetic theory calculates the <em>pressure exerted by gases as </em><u><em>the force exerted by the particles when they hit the walls of the container per unit of area.</em></u>
The answer is B. The heart contracts and expands to move blood
Make 2 in 102 as the power of 10
10^2 = 100
101 - 10^2 = 101 - 100 = 1
Hope it helped:)
Answer:
The given blank can be filled with direct.
Explanation:
A battery refers to a chemical apparatus that is used to store electrical energy. A battery generates a direct current that is a current, which flows in only one direction. DC means direct current and it should exhibit fixed terminals, that is, negative and positive terminals, which cannot be altered.
As the batteries have fixed content, they possess fixed terminals, thus, they can store only direct current. Thus, the batteries produce direct current and produce a voltage in only one direction, and they exhibit a polarity of negative and positive.