Which description explains the role of activation energy in a chemical reaction?

Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate

If a simple machine aduces the strength of a force, what must be increased? the speed of the input force the work the simple machine performs the size of the simple machine the distance over which the force is applied

[01.07]what is the answer to the problem: 101 g + 25.01 g + 5.05 g? 131.06 g 131.1 g 131 g 130 g