<h3><u>Answer;</u></h3>
Reduces the amount of work needed to move an object.
<h3><u>Explanation;</u></h3>
- <u>A simple machine is any device that reduces human effort to do work. They include, levers, inclined plane, pulleys, etc</u>.
- Simple machines make work easier by multiplying, reducing, or changing the direction of a force and also by changing the distance the force acts through.
- Simple machines cannot change the amount of work done, however, they can reduce the effort force that is required to do the work. This is to mean, machines can neither increase or reduce the energy involved in doing work.
Answer:
increasing the pressure of the reactant mixture
Explanation:
according to the collision theory , the number of collisions that take place per unit volume of the reaction mixture is called collision frequency. The effective collisions are ones which result into the formation of products. It depends on energy factor: For collision to be effective, the colliding molecules must have energy more than a particular value called as threshold energy. increasing the temperature of the reactant mixture, the reactant molecules will gain kinetic energy and thus will increase the number of effective collisions.
Carbon dioxide and water pretty sure
Answer:
Explanation:
electrons have a minus charge. There are more of them than protons.
8 - 11 = -3 is the charge of the ion. (at atom that has a charge is an ion).